23390838 has 12 divisors (see below), whose sum is σ = 50680188. Its totient is φ = 7796940.

The previous prime is 23390837. The next prime is 23390863. The reversal of 23390838 is 83809332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23390837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649728 + ... + 649763.

It is an arithmetic number, because the mean of its divisors is an integer number (4223349).

Almost surely, 2^23390838 is an apocalyptic number.

23390838 is an abundant number, since it is smaller than the sum of its proper divisors (27289350).

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

23390838 is a wasteful number, since it uses less digits than its factorization.

23390838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299499 (or 1299496 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 23390838 is about 4836.4075510651. The cubic root of 23390838 is about 285.9885156847.

The spelling of 23390838 in words is "twenty-three million, three hundred ninety thousand, eight hundred thirty-eight".