12913404 has 48 divisors (see below), whose sum is σ = 36465408. Its totient is φ = 3472128.

The previous prime is 12913399. The next prime is 12913423. The reversal of 12913404 is 40431921.

12913404 = 1267² + 1268² + ... + 1274².

12913404 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

12913404 is strictly pandigital in base 8.

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, 3094 + ... + 5949.

It is an arithmetic number, because the mean of its divisors is an integer number (759696).

Almost surely, 2^12913404 is an apocalyptic number.

12913404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12913404 is an abundant number, since it is smaller than the sum of its proper divisors (23552004).

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

12913404 is a wasteful number, since it uses less digits than its factorization.

12913404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074 (or 9072 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12913404 is about 3593.5225058430. The cubic root of 12913404 is about 234.6102124371.

The spelling of 12913404 in words is "twelve million, nine hundred thirteen thousand, four hundred four".