12738996 has 36 divisors (see below), whose sum is σ = 32734884. Its totient is φ = 4176000.

The previous prime is 12738991. The next prime is 12738997. The reversal of 12738996 is 69983721.

It can be written as a sum of positive squares in 2 ways, for example, as 6687396 + 6051600 = 2586^2 + 2460^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738991) 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, 705 + ... + 5096.

Almost surely, 2^12738996 is an apocalyptic number.

It is an amenable number.

12738996 is an abundant number, since it is smaller than the sum of its proper divisors (19995888).

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

12738996 is a wasteful number, since it uses less digits than its factorization.

12738996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872 (or 5867 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 12738996 is about 3569.1730134584. The cubic root of 12738996 is about 233.5492088313.

The spelling of 12738996 in words is "twelve million, seven hundred thirty-eight thousand, nine hundred ninety-six".