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40444230 = 2356911951
BaseRepresentation
bin1001101001001…
…0000101000110
32211002210001110
42122102011012
540323203410
64002505450
71000525131
oct232220506
984083043
1040444230
1120914392
1211665286
1384c0ac8
14552b218
15383d720
hex2692146

40444230 has 32 divisors (see below), whose sum is σ = 97256448. Its totient is φ = 10764000.

The previous prime is 40444213. The next prime is 40444237. The reversal of 40444230 is 3244404.

It is a junction number, because it is equal to n+sod(n) for n = 40444197 and 40444206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19755 + ... + 21705.

It is an arithmetic number, because the mean of its divisors is an integer number (3039264).

Almost surely, 240444230 is an apocalyptic number.

40444230 is an abundant number, since it is smaller than the sum of its proper divisors (56812218).

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

40444230 is a wasteful number, since it uses less digits than its factorization.

40444230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40444230 is about 6359.5778161762. The cubic root of 40444230 is about 343.2565689650.

Adding to 40444230 its reverse (3244404), we get a palindrome (43688634).

The spelling of 40444230 in words is "forty million, four hundred forty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 691 1382 1951 2073 3455 3902 4146 5853 6910 9755 10365 11706 19510 20730 29265 58530 1348141 2696282 4044423 6740705 8088846 13481410 20222115 40444230