42688984 has 32 divisors (see below), whose sum is σ = 88986240. Its totient is φ = 19065600.

The previous prime is 42688973. The next prime is 42688999. The reversal of 42688984 is 48988624.

42688984 is nontrivially palindromic in base 5.

It is a super-3 number, since 3×42688984³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

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, 3397 + ... + 9844.

It is an arithmetic number, because the mean of its divisors is an integer number (2780820).

Almost surely, 2^42688984 is an apocalyptic number.

It is an amenable number.

42688984 is an abundant number, since it is smaller than the sum of its proper divisors (46297256).

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

42688984 is a wasteful number, since it uses less digits than its factorization.

42688984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13291 (or 13287 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 42688984 is about 6533.6807390628. The cubic root of 42688984 is about 349.4931002327.

The spelling of 42688984 in words is "forty-two million, six hundred eighty-eight thousand, nine hundred eighty-four".