12479988 has 12 divisors (see below), whose sum is σ = 29120000. Its totient is φ = 4159992.

The previous prime is 12479981. The next prime is 12479993. The reversal of 12479988 is 88997421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12479981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519988 + ... + 520011.

Almost surely, 2^12479988 is an apocalyptic number.

It is an amenable number.

12479988 is an abundant number, since it is smaller than the sum of its proper divisors (16640012).

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

12479988 is a wasteful number, since it uses less digits than its factorization.

12479988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040006 (or 1040004 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 12479988 is about 3532.7026481152. The cubic root of 12479988 is about 231.9555255612.

The spelling of 12479988 in words is "twelve million, four hundred seventy-nine thousand, nine hundred eighty-eight".