13445456 has 10 divisors (see below), whose sum is σ = 26050602. Its totient is φ = 6722720.

The previous prime is 13445429. The next prime is 13445459. The reversal of 13445456 is 65454431.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 341056 = 3620^2 + 584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420155 + ... + 420186.

Almost surely, 2^13445456 is an apocalyptic number.

13445456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13445456 is a deficient number, since it is larger than the sum of its proper divisors (12605146).

13445456 is an equidigital number, since it uses as much as digits as its factorization.

13445456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840349 (or 840343 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 13445456 is about 3666.8046034661. The cubic root of 13445456 is about 237.7890464149.

Adding to 13445456 its reverse (65454431), we get a palindrome (78899887).

The spelling of 13445456 in words is "thirteen million, four hundred forty-five thousand, four hundred fifty-six".