12606404 has 6 divisors (see below), whose sum is σ = 22061214. Its totient is φ = 6303200.

The previous prime is 12606397. The next prime is 12606409. The reversal of 12606404 is 40460621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 565504 = 3470^2 + 752^2 .

It is a super-2 number, since 2×12606404² = 317842843622432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12606404.

It is not an unprimeable number, because it can be changed into a prime (12606409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1575797 + ... + 1575804.

It is an arithmetic number, because the mean of its divisors is an integer number (3676869).

Almost surely, 2^12606404 is an apocalyptic number.

It is an amenable number.

12606404 is a deficient number, since it is larger than the sum of its proper divisors (9454810).

12606404 is a wasteful number, since it uses less digits than its factorization.

12606404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151605 (or 3151603 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12606404 is about 3550.5498165777. The cubic root of 12606404 is about 232.7360934712.

The spelling of 12606404 in words is "twelve million, six hundred six thousand, four hundred four".