23400016 has 20 divisors (see below), whose sum is σ = 47309472. Its totient is φ = 11191136.

The previous prime is 23399953. The next prime is 23400023. The reversal of 23400016 is 61000432.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 31426 + ... + 32161.

Almost surely, 2^23400016 is an apocalyptic number.

It is an amenable number.

23400016 is an abundant number, since it is smaller than the sum of its proper divisors (23909456).

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

23400016 is a wasteful number, since it uses less digits than its factorization.

23400016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63618 (or 63612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23400016 is about 4837.3563027753. The cubic root of 23400016 is about 286.0259157894.

Adding to 23400016 its reverse (61000432), we get a palindrome (84400448).

The spelling of 23400016 in words is "twenty-three million, four hundred thousand, sixteen".