12945408 has 144 divisors (see below), whose sum is σ = 41081040. Its totient is φ = 3612672.

The previous prime is 12945391. The next prime is 12945419. The reversal of 12945408 is 80454921.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301035 + ... + 301077.

It is an arithmetic number, because the mean of its divisors is an integer number (285285).

Almost surely, 2^12945408 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 12945408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20540520).

12945408 is an abundant number, since it is smaller than the sum of its proper divisors (28135632).

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

12945408 is an equidigital number, since it uses as much as digits as its factorization.

12945408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12945408 is about 3597.9727625428. The cubic root of 12945408 is about 234.8038683439.

The spelling of 12945408 in words is "twelve million, nine hundred forty-five thousand, four hundred eight".