12900912 has 40 divisors (see below), whose sum is σ = 33460656. Its totient is φ = 4283136.

The previous prime is 12900887. The next prime is 12900931. The reversal of 12900912 is 21900921.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18718 + ... + 19394.

Almost surely, 2^12900912 is an apocalyptic number.

12900912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12900912 is an abundant number, since it is smaller than the sum of its proper divisors (20559744).

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

12900912 is a wasteful number, since it uses less digits than its factorization.

12900912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12900912 is about 3591.7839578683. The cubic root of 12900912 is about 234.5345366426.

Subtracting 12900912 from its reverse (21900921), we obtain a palindrome (9000009).

It can be divided in two parts, 12 and 900912, that multiplied together give a square (10810944 = 3288²).

The spelling of 12900912 in words is "twelve million, nine hundred thousand, nine hundred twelve".