23306538 has 16 divisors (see below), whose sum is σ = 47493216. Its totient is φ = 7622160.

The previous prime is 23306533. The next prime is 23306539. The reversal of 23306538 is 83560332.

It is not an unprimeable number, because it can be changed into a prime (23306533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36328 + ... + 36963.

It is an arithmetic number, because the mean of its divisors is an integer number (2968326).

Almost surely, 2^23306538 is an apocalyptic number.

23306538 is an abundant number, since it is smaller than the sum of its proper divisors (24186678).

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

23306538 is a wasteful number, since it uses less digits than its factorization.

23306538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73349.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 23306538 is about 4827.6845381611. The cubic root of 23306538 is about 285.6445369505.

The spelling of 23306538 in words is "twenty-three million, three hundred six thousand, five hundred thirty-eight".