42645156 has 24 divisors (see below), whose sum is σ = 100908864. Its totient is φ = 14014560.

The previous prime is 42645137. The next prime is 42645173. The reversal of 42645156 is 65154624.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24175 + ... + 25878.

It is an arithmetic number, because the mean of its divisors is an integer number (4204536).

Almost surely, 2^42645156 is an apocalyptic number.

It is an amenable number.

42645156 is an abundant number, since it is smaller than the sum of its proper divisors (58263708).

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

42645156 is a wasteful number, since it uses less digits than its factorization.

42645156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50131 (or 50129 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 42645156 is about 6530.3258724202. The cubic root of 42645156 is about 349.3734532164.

The spelling of 42645156 in words is "forty-two million, six hundred forty-five thousand, one hundred fifty-six".