23415912 has 128 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 6946560.

The previous prime is 23415911. The next prime is 23415929. The reversal of 23415912 is 21951432.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23415911) 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 31 ways as a sum of consecutive naturals, for example, 86914 + ... + 87182.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^23415912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23415912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

23415912 is an abundant number, since it is smaller than the sum of its proper divisors (49160088).

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

23415912 is a wasteful number, since it uses less digits than its factorization.

23415912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 318 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 23415912 is about 4838.9990700557. Note that the first 3 decimals coincide. The cubic root of 23415912 is about 286.0906684346.

The spelling of 23415912 in words is "twenty-three million, four hundred fifteen thousand, nine hundred twelve".