23291332 has 12 divisors (see below), whose sum is σ = 41141520. Its totient is φ = 11536616.

The previous prime is 23291299. The next prime is 23291339. The reversal of 23291332 is 23319232.

It is a super-2 number, since 2×23291332² = 1084972292668448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23291297 and 23291306.

It is not an unprimeable number, because it can be changed into a prime (23291339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26782 + ... + 27637.

It is an arithmetic number, because the mean of its divisors is an integer number (3428460).

Almost surely, 2^23291332 is an apocalyptic number.

It is an amenable number.

23291332 is a deficient number, since it is larger than the sum of its proper divisors (17850188).

23291332 is a wasteful number, since it uses less digits than its factorization.

23291332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54530 (or 54528 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

The square root of 23291332 is about 4826.1094061366. The cubic root of 23291332 is about 285.5824019422.

The spelling of 23291332 in words is "twenty-three million, two hundred ninety-one thousand, three hundred thirty-two".