12955904 has 72 divisors (see below), whose sum is σ = 29617560. Its totient is φ = 5603328.

The previous prime is 12955889. The next prime is 12955913. The reversal of 12955904 is 40955921.

It can be written as a sum of positive squares in 4 ways, for example, as 4194304 + 8761600 = 2048^2 + 2960^2 .

It is a congruent number.

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, 56462 + ... + 56690.

It is an arithmetic number, because the mean of its divisors is an integer number (411355).

Almost surely, 2^12955904 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 12955904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14808780).

12955904 is an abundant number, since it is smaller than the sum of its proper divisors (16661656).

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

12955904 is a wasteful number, since it uses less digits than its factorization.

12955904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 12955904 is about 3599.4310661548. The cubic root of 12955904 is about 234.8673100327.

The spelling of 12955904 in words is "twelve million, nine hundred fifty-five thousand, nine hundred four".