12995720 has 16 divisors (see below), whose sum is σ = 29240460. Its totient is φ = 5198272.

The previous prime is 12995711. The next prime is 12995747. The reversal of 12995720 is 2759921.

It can be written as a sum of positive squares in 2 ways, for example, as 12974404 + 21316 = 3602^2 + 146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162407 + ... + 162486.

Almost surely, 2^12995720 is an apocalyptic number.

12995720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12995720 is an abundant number, since it is smaller than the sum of its proper divisors (16244740).

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

12995720 is a wasteful number, since it uses less digits than its factorization.

12995720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324904 (or 324900 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 12995720 is about 3604.9576973940. The cubic root of 12995720 is about 235.1076615488.

The spelling of 12995720 in words is "twelve million, nine hundred ninety-five thousand, seven hundred twenty".