12904900 has 18 divisors (see below), whose sum is σ = 28003850. Its totient is φ = 5161920.

The previous prime is 12904883. The next prime is 12904901. The reversal of 12904900 is 940921.

It can be written as a sum of positive squares in 3 ways, for example, as 3319684 + 9585216 = 1822^2 + 3096^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12904901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64425 + ... + 64624.

Almost surely, 2^12904900 is an apocalyptic number.

12904900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12904900 is an abundant number, since it is smaller than the sum of its proper divisors (15098950).

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

12904900 is a wasteful number, since it uses less digits than its factorization.

12904900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129063 (or 129056 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 12904900 is about 3592.3390708562. The cubic root of 12904900 is about 234.5587010162.

The spelling of 12904900 in words is "twelve million, nine hundred four thousand, nine hundred".