12990996 has 48 divisors (see below), whose sum is σ = 34601280. Its totient is φ = 4212000.

The previous prime is 12990979. The next prime is 12991037. The reversal of 12990996 is 69909921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2371 + ... + 5621.

It is an arithmetic number, because the mean of its divisors is an integer number (720860).

Almost surely, 2^12990996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12990996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17300640).

12990996 is an abundant number, since it is smaller than the sum of its proper divisors (21610284).

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

12990996 is a wasteful number, since it uses less digits than its factorization.

12990996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3293 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 12990996 is about 3604.3024290423. The cubic root of 12990996 is about 235.0791705482.

It can be divided in two parts, 129 and 90996, that added together give a cube (91125 = 45³).

The spelling of 12990996 in words is "twelve million, nine hundred ninety thousand, nine hundred ninety-six".