12740800 has 42 divisors (see below), whose sum is σ = 31354268. Its totient is φ = 5095680.

The previous prime is 12740797. The next prime is 12740809. The reversal of 12740800 is 804721.

It is not an unprimeable number, because it can be changed into a prime (12740809) 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, 2382 + ... + 5581.

Almost surely, 2^12740800 is an apocalyptic number.

12740800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12740800 is an abundant number, since it is smaller than the sum of its proper divisors (18613468).

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

12740800 is an equidigital number, since it uses as much as digits as its factorization.

12740800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985 (or 7970 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12740800 is about 3569.4257241187. The cubic root of 12740800 is about 233.5602328002.

The spelling of 12740800 in words is "twelve million, seven hundred forty thousand, eight hundred".