42656315 has 16 divisors (see below), whose sum is σ = 58369248. Its totient is φ = 29646336.

The previous prime is 42656297. The next prime is 42656321. The reversal of 42656315 is 51365624.

42656315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42656315 - 2²⁴ = 25879099 is a prime.

It is a super-2 number, since 2×42656315² = 3639122418758450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18197 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (3648078).

Almost surely, 2^42656315 is an apocalyptic number.

42656315 is a deficient number, since it is larger than the sum of its proper divisors (15712933).

42656315 is a wasteful number, since it uses less digits than its factorization.

42656315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38638.

The product of its digits is 21600, while the sum is 32.

The square root of 42656315 is about 6531.1802149382. The cubic root of 42656315 is about 349.4039241908.

The spelling of 42656315 in words is "forty-two million, six hundred fifty-six thousand, three hundred fifteen".