890816315238 has 48 divisors (see below), whose sum is σ = 1932294003120. Its totient is φ = 296601746112.

The previous prime is 890816315227. The next prime is 890816315267. The reversal of 890816315238 is 832513618098.

890816315238 is a `hidden beast` number, since 8 + 9 + 0 + 81 + 6 + 31 + 523 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69301620 + ... + 69314472.

It is an arithmetic number, because the mean of its divisors is an integer number (40256125065).

Almost surely, 2^890816315238 is an apocalyptic number.

890816315238 is an abundant number, since it is smaller than the sum of its proper divisors (1041477687882).

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

890816315238 is a wasteful number, since it uses less digits than its factorization.

890816315238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16933 (or 16930 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 890816315238 in words is "eight hundred ninety billion, eight hundred sixteen million, three hundred fifteen thousand, two hundred thirty-eight".