23306404 has 12 divisors (see below), whose sum is σ = 44494128. Its totient is φ = 10593800.

The previous prime is 23306377. The next prime is 23306417. The reversal of 23306404 is 40460332.

It is a super-2 number, since 2×23306404² = 1086376934822432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264802 + ... + 264889.

It is an arithmetic number, because the mean of its divisors is an integer number (3707844).

Almost surely, 2^23306404 is an apocalyptic number.

It is an amenable number.

23306404 is a deficient number, since it is larger than the sum of its proper divisors (21187724).

23306404 is a wasteful number, since it uses less digits than its factorization.

23306404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529706 (or 529704 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 23306404 is about 4827.6706598524. The cubic root of 23306404 is about 285.6439895155.

Adding to 23306404 its reverse (40460332), we get a palindrome (63766736).

The spelling of 23306404 in words is "twenty-three million, three hundred six thousand, four hundred four".