42965988 has 24 divisors (see below), whose sum is σ = 107966208. Its totient is φ = 13220256.

The previous prime is 42965981. The next prime is 42965999. The reversal of 42965988 is 88956924.

It is a super-2 number, since 2×42965988² = 3692152249632288, 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 42965988.

It is not an unprimeable number, because it can be changed into a prime (42965981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137556 + ... + 137867.

It is an arithmetic number, because the mean of its divisors is an integer number (4498592).

Almost surely, 2^42965988 is an apocalyptic number.

It is an amenable number.

42965988 is an abundant number, since it is smaller than the sum of its proper divisors (65000220).

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

42965988 is a wasteful number, since it uses less digits than its factorization.

42965988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275443 (or 275441 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 42965988 is about 6554.8446205841. The cubic root of 42965988 is about 350.2474114607.

The spelling of 42965988 in words is "forty-two million, nine hundred sixty-five thousand, nine hundred eighty-eight".