12394974400 has 84 divisors (see below), whose sum is σ = 30610584448. Its totient is φ = 4939914240.

The previous prime is 12394974391. The next prime is 12394974401. The reversal of 12394974400 is 447949321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12394974401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429217 + ... + 457183.

Almost surely, 2^12394974400 is an apocalyptic number.

12394974400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12394974400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15305292224).

12394974400 is an abundant number, since it is smaller than the sum of its proper divisors (18215610048).

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

12394974400 is a wasteful number, since it uses less digits than its factorization.

12394974400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28266 (or 28251 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 12394974400 in words is "twelve billion, three hundred ninety-four million, nine hundred seventy-four thousand, four hundred".