13204478 has 32 divisors (see below), whose sum is σ = 24235200. Its totient is φ = 5266944.

The previous prime is 13204469. The next prime is 13204517. The reversal of 13204478 is 87440231.

It is a self number, because there is not a number n which added to its sum of digits gives 13204478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25688 + ... + 26196.

It is an arithmetic number, because the mean of its divisors is an integer number (757350).

Almost surely, 2^13204478 is an apocalyptic number.

13204478 is a deficient number, since it is larger than the sum of its proper divisors (11030722).

13204478 is a wasteful number, since it uses less digits than its factorization.

13204478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 13204478 is about 3633.7966371276. The cubic root of 13204478 is about 236.3598718156.

The spelling of 13204478 in words is "thirteen million, two hundred four thousand, four hundred seventy-eight".