23400012 has 48 divisors (see below), whose sum is σ = 56448000. Its totient is φ = 7539840.

The previous prime is 23399953. The next prime is 23400023. The reversal of 23400012 is 21000432.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 97789 + ... + 98027.

It is an arithmetic number, because the mean of its divisors is an integer number (1176000).

Almost surely, 2^23400012 is an apocalyptic number.

It is an amenable number.

23400012 is an abundant number, since it is smaller than the sum of its proper divisors (33047988).

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

23400012 is a wasteful number, since it uses less digits than its factorization.

23400012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 23400012 is about 4837.3558893263. The cubic root of 23400012 is about 286.0258994916.

Adding to 23400012 its reverse (21000432), we get a palindrome (44400444).

The spelling of 23400012 in words is "twenty-three million, four hundred thousand, twelve".