23318906 has 16 divisors (see below), whose sum is σ = 38007144. Its totient is φ = 10665984.

The previous prime is 23318903. The next prime is 23318923. The reversal of 23318906 is 60981332.

It can be written as a sum of positive squares in 4 ways, for example, as 16605625 + 6713281 = 4075^2 + 2591^2 .

It is not an unprimeable number, because it can be changed into a prime (23318903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031 + ... + 6906.

Almost surely, 2^23318906 is an apocalyptic number.

23318906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23318906 is a deficient number, since it is larger than the sum of its proper divisors (14688238).

23318906 is a wasteful number, since it uses less digits than its factorization.

23318906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 23318906 is about 4828.9653136050. The cubic root of 23318906 is about 285.6950553486.

The spelling of 23318906 in words is "twenty-three million, three hundred eighteen thousand, nine hundred six".