13390456 has 8 divisors (see below), whose sum is σ = 25107120. Its totient is φ = 6695224.

The previous prime is 13390417. The next prime is 13390469. The reversal of 13390456 is 65409331.

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

It is a congruent number.

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, 836896 + ... + 836911.

It is an arithmetic number, because the mean of its divisors is an integer number (3138390).

Almost surely, 2^13390456 is an apocalyptic number.

It is an amenable number.

13390456 is a deficient number, since it is larger than the sum of its proper divisors (11716664).

13390456 is a wasteful number, since it uses less digits than its factorization.

13390456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673813 (or 1673809 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 13390456 is about 3659.2972002831. The cubic root of 13390456 is about 237.4643699089.

Adding to 13390456 its reverse (65409331), we get a palindrome (78799787).

The spelling of 13390456 in words is "thirteen million, three hundred ninety thousand, four hundred fifty-six".