12439800 has 72 divisors (see below), whose sum is σ = 41783040. Its totient is φ = 3316800.

The previous prime is 12439783. The next prime is 12439829. The reversal of 12439800 is 893421.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1656 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (580320).

Almost surely, 2^12439800 is an apocalyptic number.

12439800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12439800 is an abundant number, since it is smaller than the sum of its proper divisors (29343240).

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

12439800 is a wasteful number, since it uses less digits than its factorization.

12439800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933 (or 6921 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12439800 is about 3527.0100651969. The cubic root of 12439800 is about 231.7062771208.

The spelling of 12439800 in words is "twelve million, four hundred thirty-nine thousand, eight hundred".