12604388 has 6 divisors (see below), whose sum is σ = 22057686. Its totient is φ = 6302192.

The previous prime is 12604379. The next prime is 12604393. The reversal of 12604388 is 88340621.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 438244 = 3488^2 + 662^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1575545 + ... + 1575552.

It is an arithmetic number, because the mean of its divisors is an integer number (3676281).

Almost surely, 2^12604388 is an apocalyptic number.

It is an amenable number.

12604388 is a deficient number, since it is larger than the sum of its proper divisors (9453298).

12604388 is a wasteful number, since it uses less digits than its factorization.

12604388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151101 (or 3151099 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12604388 is about 3550.2659055344. The cubic root of 12604388 is about 232.7236865237.

The spelling of 12604388 in words is "twelve million, six hundred four thousand, three hundred eighty-eight".