13390556 has 24 divisors (see below), whose sum is σ = 24195024. Its totient is φ = 6481280.

The previous prime is 13390549. The next prime is 13390583. The reversal of 13390556 is 65509331.

13390556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17216 + ... + 17976.

It is an arithmetic number, because the mean of its divisors is an integer number (1008126).

Almost surely, 2^13390556 is an apocalyptic number.

It is an amenable number.

13390556 is a deficient number, since it is larger than the sum of its proper divisors (10804468).

13390556 is a wasteful number, since it uses less digits than its factorization.

13390556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 13390556 is about 3659.3108640836. The cubic root of 13390556 is about 237.4649610359.

Adding to 13390556 its reverse (65509331), we get a palindrome (78899887).

The spelling of 13390556 in words is "thirteen million, three hundred ninety thousand, five hundred fifty-six".