13420456 has 32 divisors (see below), whose sum is σ = 28880640. Its totient is φ = 5727168.

The previous prime is 13420453. The next prime is 13420469. The reversal of 13420456 is 65402431.

13420456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13420456.

It is not an unprimeable number, because it can be changed into a prime (13420453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20226 + ... + 20878.

It is an arithmetic number, because the mean of its divisors is an integer number (902520).

Almost surely, 2^13420456 is an apocalyptic number.

It is an amenable number.

13420456 is an abundant number, since it is smaller than the sum of its proper divisors (15460184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13420456 is a wasteful number, since it uses less digits than its factorization.

13420456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13420456 is about 3663.3940546985. The cubic root of 13420456 is about 237.6415761607.

Adding to 13420456 its reverse (65402431), we get a palindrome (78822887).

The spelling of 13420456 in words is "thirteen million, four hundred twenty thousand, four hundred fifty-six".