890438924 has 12 divisors (see below), whose sum is σ = 1562894424. Its totient is φ = 443897664.

The previous prime is 890438917. The next prime is 890438957. The reversal of 890438924 is 429834098.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328934 + ... + 331629.

It is an arithmetic number, because the mean of its divisors is an integer number (130241202).

Almost surely, 2^890438924 is an apocalyptic number.

It is an amenable number.

890438924 is a deficient number, since it is larger than the sum of its proper divisors (672455500).

890438924 is a wasteful number, since it uses less digits than its factorization.

890438924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660904 (or 660902 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 890438924 is about 29840.2232565375. The cubic root of 890438924 is about 962.0582733620.

The spelling of 890438924 in words is "eight hundred ninety million, four hundred thirty-eight thousand, nine hundred twenty-four".