12990252 has 24 divisors (see below), whose sum is σ = 33066432. Its totient is φ = 3936400.

The previous prime is 12990233. The next prime is 12990253. The reversal of 12990252 is 25209921.

12990252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12990253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49074 + ... + 49337.

It is an arithmetic number, because the mean of its divisors is an integer number (1377768).

Almost surely, 2^12990252 is an apocalyptic number.

12990252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12990252 is an abundant number, since it is smaller than the sum of its proper divisors (20076180).

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

12990252 is a wasteful number, since it uses less digits than its factorization.

12990252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98429 (or 98427 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12990252 is about 3604.1992175794. The cubic root of 12990252 is about 235.0746827671.

The spelling of 12990252 in words is "twelve million, nine hundred ninety thousand, two hundred fifty-two".