890428238 has 16 divisors (see below), whose sum is σ = 1579085280. Its totient is φ = 368452896.

The previous prime is 890428181. The next prime is 890428291. The reversal of 890428238 is 832824098.

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, 1096181 + ... + 1096992.

It is an arithmetic number, because the mean of its divisors is an integer number (98692830).

Almost surely, 2^890428238 is an apocalyptic number.

890428238 is a deficient number, since it is larger than the sum of its proper divisors (688657042).

890428238 is a wasteful number, since it uses less digits than its factorization.

890428238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193211.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 890428238 is about 29840.0442023801. The cubic root of 890428238 is about 962.0544248495.

The spelling of 890428238 in words is "eight hundred ninety million, four hundred twenty-eight thousand, two hundred thirty-eight".