42315885 has 32 divisors (see below), whose sum is σ = 75502080. Its totient is φ = 22486464.

The previous prime is 42315877. The next prime is 42315893. The reversal of 42315885 is 58851324.

It is a happy number.

42315885 is a `hidden beast` number, since 42 + 31 + 588 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (42315877) and next prime (42315893).

It is not a de Polignac number, because 42315885 - 2³ = 42315877 is a prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62167 + ... + 62843.

It is an arithmetic number, because the mean of its divisors is an integer number (2359440).

Almost surely, 2^42315885 is an apocalyptic number.

42315885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42315885 is a deficient number, since it is larger than the sum of its proper divisors (33186195).

42315885 is a wasteful number, since it uses less digits than its factorization.

42315885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1148 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 42315885 is about 6505.0661026618. The cubic root of 42315885 is about 348.4719369866.

The spelling of 42315885 in words is "forty-two million, three hundred fifteen thousand, eight hundred eighty-five".