12990372 has 12 divisors (see below), whose sum is σ = 30310896. Its totient is φ = 4330120.

The previous prime is 12990371. The next prime is 12990403. The reversal of 12990372 is 27309921.

12990372 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12990371) 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, 541254 + ... + 541277.

It is an arithmetic number, because the mean of its divisors is an integer number (2525908).

Almost surely, 2^12990372 is an apocalyptic number.

12990372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12990372 is an abundant number, since it is smaller than the sum of its proper divisors (17320524).

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

12990372 is a wasteful number, since it uses less digits than its factorization.

12990372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082538 (or 1082536 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12990372 is about 3604.2158647895. The cubic root of 12990372 is about 235.0754066143.

The spelling of 12990372 in words is "twelve million, nine hundred ninety thousand, three hundred seventy-two".