23491338 has 24 divisors (see below), whose sum is σ = 50876928. Its totient is φ = 7227792.

The previous prime is 23491301. The next prime is 23491357. The reversal of 23491338 is 83319432.

It is a happy number.

It is a super-2 number, since 2×23491338² = 1103685922060488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23491299 and 23491308.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10570 + ... + 12597.

It is an arithmetic number, because the mean of its divisors is an integer number (2119872).

Almost surely, 2^23491338 is an apocalyptic number.

23491338 is an abundant number, since it is smaller than the sum of its proper divisors (27385590).

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

23491338 is a wasteful number, since it uses less digits than its factorization.

23491338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23198 (or 23185 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 23491338 is about 4846.7863579902. The cubic root of 23491338 is about 286.3975188476.

The spelling of 23491338 in words is "twenty-three million, four hundred ninety-one thousand, three hundred thirty-eight".