13428004 has 6 divisors (see below), whose sum is σ = 23499014. Its totient is φ = 6714000.

The previous prime is 13427983. The next prime is 13428049. The reversal of 13428004 is 40082431.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 5531904 = 2810^2 + 2352^2 .

It is a super-2 number, since 2×13428004² = 360622582848032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1678497 + ... + 1678504.

Almost surely, 2^13428004 is an apocalyptic number.

It is an amenable number.

13428004 is a deficient number, since it is larger than the sum of its proper divisors (10071010).

13428004 is a wasteful number, since it uses less digits than its factorization.

13428004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357005 (or 3357003 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 13428004 is about 3664.4241020930. The cubic root of 13428004 is about 237.6861196657.

The spelling of 13428004 in words is "thirteen million, four hundred twenty-eight thousand, four".