13405804 has 6 divisors (see below), whose sum is σ = 23460164. Its totient is φ = 6702900.

The previous prime is 13405783. The next prime is 13405807. The reversal of 13405804 is 40850431.

13405804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13405807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675722 + ... + 1675729.

Almost surely, 2^13405804 is an apocalyptic number.

It is an amenable number.

13405804 is a deficient number, since it is larger than the sum of its proper divisors (10054360).

13405804 is a wasteful number, since it uses less digits than its factorization.

13405804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351455 (or 3351453 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13405804 is about 3661.3937237069. The cubic root of 13405804 is about 237.5550616565. Note that the first 3 decimals are identical.

The spelling of 13405804 in words is "thirteen million, four hundred five thousand, eight hundred four".