13290656 has 24 divisors (see below), whose sum is σ = 26560800. Its totient is φ = 6545088.

The previous prime is 13290647. The next prime is 13290713. The reversal of 13290656 is 65609231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1106700).

Almost surely, 2^13290656 is an apocalyptic number.

13290656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13290656 is a deficient number, since it is larger than the sum of its proper divisors (13270144).

13290656 is an equidigital number, since it uses as much as digits as its factorization.

13290656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276 (or 6268 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 13290656 is about 3645.6351984256. The cubic root of 13290656 is about 236.8729520178.

Adding to 13290656 its reverse (65609231), we get a palindrome (78899887).

The spelling of 13290656 in words is "thirteen million, two hundred ninety thousand, six hundred fifty-six".