42315880 has 16 divisors (see below), whose sum is σ = 95210820. Its totient is φ = 16926336.

The previous prime is 42315877. The next prime is 42315893. The reversal of 42315880 is 8851324.

It can be written as a sum of positive squares in 2 ways, for example, as 40119556 + 2196324 = 6334^2 + 1482^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528909 + ... + 528988.

Almost surely, 2^42315880 is an apocalyptic number.

42315880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42315880 is an abundant number, since it is smaller than the sum of its proper divisors (52894940).

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

42315880 is a wasteful number, since it uses less digits than its factorization.

42315880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057908 (or 1057904 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 42315880 is about 6505.0657183460. The cubic root of 42315880 is about 348.4719232616.

The spelling of 42315880 in words is "forty-two million, three hundred fifteen thousand, eight hundred eighty".