890521938 has 40 divisors (see below), whose sum is σ = 1997347968. Its totient is φ = 296555256.

The previous prime is 890521921. The next prime is 890521979. The reversal of 890521938 is 839125098.

It is a happy number.

890521938 is a `hidden beast` number, since 8 + 90 + 521 + 9 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 890521893 and 890521902.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 228595 + ... + 232457.

Almost surely, 2^890521938 is an apocalyptic number.

890521938 is an abundant number, since it is smaller than the sum of its proper divisors (1106826030).

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

890521938 is a wasteful number, since it uses less digits than its factorization.

890521938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300 (or 5291 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 890521938 is about 29841.6141989672. The cubic root of 890521938 is about 962.0881694135.

The spelling of 890521938 in words is "eight hundred ninety million, five hundred twenty-one thousand, nine hundred thirty-eight".