42918315 has 16 divisors (see below), whose sum is σ = 74912256. Its totient is φ = 20808800.

The previous prime is 42918307. The next prime is 42918331. The reversal of 42918315 is 51381924.

It is not a de Polignac number, because 42918315 - 2³ = 42918307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129891 + ... + 130220.

It is an arithmetic number, because the mean of its divisors is an integer number (4682016).

Almost surely, 2^42918315 is an apocalyptic number.

42918315 is a deficient number, since it is larger than the sum of its proper divisors (31993941).

42918315 is a wasteful number, since it uses less digits than its factorization.

42918315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260130.

The product of its digits is 8640, while the sum is 33.

The square root of 42918315 is about 6551.2071406726. The cubic root of 42918315 is about 350.1178242767.

The spelling of 42918315 in words is "forty-two million, nine hundred eighteen thousand, three hundred fifteen".