42839976 has 32 divisors (see below), whose sum is σ = 107336160. Its totient is φ = 14248512.

The previous prime is 42839947. The next prime is 42839981. The reversal of 42839976 is 67993824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10846 + ... + 14258.

It is an arithmetic number, because the mean of its divisors is an integer number (3354255).

Almost surely, 2^42839976 is an apocalyptic number.

It is an amenable number.

42839976 is an abundant number, since it is smaller than the sum of its proper divisors (64496184).

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

42839976 is a wasteful number, since it uses less digits than its factorization.

42839976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3941 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 42839976 is about 6545.2254353842. The cubic root of 42839976 is about 349.9046706362.

It can be divided in two parts, 428 and 39976, that added together give a palindrome (40404).

The spelling of 42839976 in words is "forty-two million, eight hundred thirty-nine thousand, nine hundred seventy-six".