13408456 has 16 divisors (see below), whose sum is σ = 25196940. Its totient is φ = 6689280.

The previous prime is 13408397. The next prime is 13408463. The reversal of 13408456 is 65480431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 202500 = 3634^2 + 450^2 .

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, 2560 + ... + 5776.

Almost surely, 2^13408456 is an apocalyptic number.

It is an amenable number.

13408456 is a deficient number, since it is larger than the sum of its proper divisors (11788484).

13408456 is a wasteful number, since it uses less digits than its factorization.

13408456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744 (or 3740 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 13408456 is about 3661.7558629707. The cubic root of 13408456 is about 237.5707253816.

Adding to 13408456 its reverse (65480431), we get a palindrome (78888887).

The spelling of 13408456 in words is "thirteen million, four hundred eight thousand, four hundred fifty-six".