12690800 has 30 divisors (see below), whose sum is σ = 30490608. Its totient is φ = 5076160.

The previous prime is 12690791. The next prime is 12690817. The reversal of 12690800 is 809621.

It is a super-2 number, since 2×12690800² = 322112809280000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12690800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15464 + ... + 16263.

Almost surely, 2^12690800 is an apocalyptic number.

12690800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12690800 is an abundant number, since it is smaller than the sum of its proper divisors (17799808).

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

12690800 is a wasteful number, since it uses less digits than its factorization.

12690800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31745 (or 31734 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12690800 is about 3562.4149112645. The cubic root of 12690800 is about 233.2543043020.

The spelling of 12690800 in words is "twelve million, six hundred ninety thousand, eight hundred".