13204456 has 8 divisors (see below), whose sum is σ = 24758370. Its totient is φ = 6602224.

The previous prime is 13204453. The next prime is 13204469. The reversal of 13204456 is 65440231.

It can be written as a sum of positive squares in only one way, i.e., 13176900 + 27556 = 3630^2 + 166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13204456.

It is not an unprimeable number, because it can be changed into a prime (13204453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825271 + ... + 825286.

Almost surely, 2^13204456 is an apocalyptic number.

It is an amenable number.

13204456 is a deficient number, since it is larger than the sum of its proper divisors (11553914).

13204456 is a wasteful number, since it uses less digits than its factorization.

13204456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650563 (or 1650559 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13204456 is about 3633.7936099894. The cubic root of 13204456 is about 236.3597405490.

Adding to 13204456 its reverse (65440231), we get a palindrome (78644687).

It can be divided in two parts, 1320 and 4456, that added together give a square (5776 = 76²).

The spelling of 13204456 in words is "thirteen million, two hundred four thousand, four hundred fifty-six".