42875931 has 24 divisors (see below), whose sum is σ = 67018320. Its totient is φ = 24310272.

The previous prime is 42875909. The next prime is 42875939. The reversal of 42875931 is 13957824.

42875931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42875931 - 2⁶ = 42875867 is a prime.

It is a super-2 number, since 2×42875931² = 3676690918233522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42875931.

It is not an unprimeable number, because it can be changed into a prime (42875939) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19075 + ... + 21203.

It is an arithmetic number, because the mean of its divisors is an integer number (2792430).

Almost surely, 2^42875931 is an apocalyptic number.

42875931 is a deficient number, since it is larger than the sum of its proper divisors (24142389).

42875931 is a wasteful number, since it uses less digits than its factorization.

42875931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283 (or 2276 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 42875931 is about 6547.9715179588. The cubic root of 42875931 is about 350.0025333150.

The spelling of 42875931 in words is "forty-two million, eight hundred seventy-five thousand, nine hundred thirty-one".