15040056 has 32 divisors (see below), whose sum is σ = 38618640. Its totient is φ = 4877568.

The previous prime is 15040049. The next prime is 15040057. The reversal of 15040056 is 65004051.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7581 + ... + 9356.

Almost surely, 2^15040056 is an apocalyptic number.

It is an amenable number.

15040056 is an abundant number, since it is smaller than the sum of its proper divisors (23578584).

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

15040056 is a wasteful number, since it uses less digits than its factorization.

15040056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16983 (or 16979 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 15040056 is about 3878.1511058751. The cubic root of 15040056 is about 246.8405380727.

The spelling of 15040056 in words is "fifteen million, forty thousand, fifty-six".