12670400 has 42 divisors (see below), whose sum is σ = 31181040. Its totient is φ = 5067520.

The previous prime is 12670381. The next prime is 12670403. The reversal of 12670400 is 407621.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12670403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2360 + ... + 5559.

Almost surely, 2^12670400 is an apocalyptic number.

12670400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12670400 is an abundant number, since it is smaller than the sum of its proper divisors (18510640).

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

12670400 is an equidigital number, since it uses as much as digits as its factorization.

12670400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941 (or 7926 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12670400 is about 3559.5505334241. The cubic root of 12670400 is about 233.1292546667.

The spelling of 12670400 in words is "twelve million, six hundred seventy thousand, four hundred".