12725388 has 36 divisors (see below), whose sum is σ = 34642608. Its totient is φ = 3915360.

The previous prime is 12725381. The next prime is 12725389. The reversal of 12725388 is 88352721.

12725388 is a `hidden beast` number, since 1 + 272 + 5 + 388 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12725381) 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, 13128 + ... + 14063.

Almost surely, 2^12725388 is an apocalyptic number.

12725388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12725388 is an abundant number, since it is smaller than the sum of its proper divisors (21917220).

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

12725388 is a wasteful number, since it uses less digits than its factorization.

12725388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27214 (or 27209 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 12725388 is about 3567.2661801441. The cubic root of 12725388 is about 233.4660188648.

The spelling of 12725388 in words is "twelve million, seven hundred twenty-five thousand, three hundred eighty-eight".