42865156 has 12 divisors (see below), whose sum is σ = 75120192. Its totient is φ = 21402248.

The previous prime is 42865153. The next prime is 42865171. The reversal of 42865156 is 65156824.

It is not an unprimeable number, because it can be changed into a prime (42865153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4240 + ... + 10183.

It is an arithmetic number, because the mean of its divisors is an integer number (6260016).

Almost surely, 2^42865156 is an apocalyptic number.

It is an amenable number.

42865156 is a deficient number, since it is larger than the sum of its proper divisors (32255036).

42865156 is a wasteful number, since it uses less digits than its factorization.

42865156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170 (or 15168 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 42865156 is about 6547.1486923698. The cubic root of 42865156 is about 349.9732115551.

The spelling of 42865156 in words is "forty-two million, eight hundred sixty-five thousand, one hundred fifty-six".