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40474404 = 2234532357
BaseRepresentation
bin1001101001100…
…1011100100100
32211011022110000
42122121130210
540330140104
64003301300
71001012115
oct232313444
984138400
1040474404
1120935023
121167a830
138501769
14553820c
153847639
hex2699724

40474404 has 60 divisors (see below), whose sum is σ = 107850204. Its totient is φ = 13231296.

The previous prime is 40474393. The next prime is 40474429. The reversal of 40474404 is 40447404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17892900 + 22581504 = 4230^2 + 4752^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15994 + ... + 18350.

Almost surely, 240474404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40474404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53925102).

40474404 is an abundant number, since it is smaller than the sum of its proper divisors (67375800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40474404 is a wasteful number, since it uses less digits than its factorization.

40474404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 40474404 is about 6361.9497011529. The cubic root of 40474404 is about 343.3419115796.

Subtracting from 40474404 its reverse (40447404), we obtain a cube (27000 = 303).

The spelling of 40474404 in words is "forty million, four hundred seventy-four thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 53 54 81 106 108 159 162 212 318 324 477 636 954 1431 1908 2357 2862 4293 4714 5724 7071 8586 9428 14142 17172 21213 28284 42426 63639 84852 124921 127278 190917 249842 254556 374763 381834 499684 749526 763668 1124289 1499052 2248578 3372867 4497156 6745734 10118601 13491468 20237202 40474404