40133340 has 96 divisors (see below), whose sum is σ = 134487360. Its totient is φ = 9877248.

The previous prime is 40133323. The next prime is 40133351. The reversal of 40133340 is 4333104.

It is a super-2 number, since 2×40133340² = 3221369959111200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4162 + ... + 9878.

It is an arithmetic number, because the mean of its divisors is an integer number (1400910).

Almost surely, 2^40133340 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 40133340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67243680).

40133340 is an abundant number, since it is smaller than the sum of its proper divisors (94354020).

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

40133340 is a wasteful number, since it uses less digits than its factorization.

40133340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748 (or 5740 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40133340 is about 6335.0880025458. The cubic root of 40133340 is about 342.3747815116.

Adding to 40133340 its reverse (4333104), we get a palindrome (44466444).

The spelling of 40133340 in words is "forty million, one hundred thirty-three thousand, three hundred forty".