12456207400 has 96 divisors (see below), whose sum is σ = 35643968640. Its totient is φ = 3942178560.

The previous prime is 12456207391. The next prime is 12456207409. The reversal of 12456207400 is 470265421.

It is an interprime number because it is at equal distance from previous prime (12456207391) and next prime (12456207409).

It is not an unprimeable number, because it can be changed into a prime (12456207409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324004 + ... + 360403.

It is an arithmetic number, because the mean of its divisors is an integer number (371291340).

Almost surely, 2^12456207400 is an apocalyptic number.

12456207400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12456207400 is an abundant number, since it is smaller than the sum of its proper divisors (23187761240).

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

12456207400 is a wasteful number, since it uses less digits than its factorization.

12456207400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684443 (or 684434 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 12456207400 in words is "twelve billion, four hundred fifty-six million, two hundred seven thousand, four hundred".