13622404 has 6 divisors (see below), whose sum is σ = 23839214. Its totient is φ = 6811200.

The previous prime is 13622383. The next prime is 13622447. The reversal of 13622404 is 40422631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9622404 + 4000000 = 3102^2 + 2000^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702797 + ... + 1702804.

Almost surely, 2^13622404 is an apocalyptic number.

It is an amenable number.

13622404 is a deficient number, since it is larger than the sum of its proper divisors (10216810).

13622404 is a wasteful number, since it uses less digits than its factorization.

13622404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405605 (or 3405603 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 13622404 is about 3690.8541016952. The cubic root of 13622404 is about 238.8276390135.

The spelling of 13622404 in words is "thirteen million, six hundred twenty-two thousand, four hundred four".