42915984 has 40 divisors (see below), whose sum is σ = 116703840. Its totient is φ = 13552128.

The previous prime is 42915941. The next prime is 42916009. The reversal of 42915984 is 48951924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22617 + ... + 24440.

It is an arithmetic number, because the mean of its divisors is an integer number (2917596).

Almost surely, 2^42915984 is an apocalyptic number.

It is an amenable number.

42915984 is an abundant number, since it is smaller than the sum of its proper divisors (73787856).

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

42915984 is a wasteful number, since it uses less digits than its factorization.

42915984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47087 (or 47081 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 42915984 is about 6551.0292321131. The cubic root of 42915984 is about 350.1114855731. Note that the first 3 decimals are identical.

The spelling of 42915984 in words is "forty-two million, nine hundred fifteen thousand, nine hundred eighty-four".