13456442 has 4 divisors (see below), whose sum is σ = 20184666. Its totient is φ = 6728220.

The previous prime is 13456439. The next prime is 13456453. The reversal of 13456442 is 24465431.

13456442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 4748041 = 2951^2 + 2179^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364109 + ... + 3364112.

Almost surely, 2^13456442 is an apocalyptic number.

13456442 is a deficient number, since it is larger than the sum of its proper divisors (6728224).

13456442 is an equidigital number, since it uses as much as digits as its factorization.

13456442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6728223.

The product of its digits is 11520, while the sum is 29.

The square root of 13456442 is about 3668.3023321422. The cubic root of 13456442 is about 237.8537929307.

The spelling of 13456442 in words is "thirteen million, four hundred fifty-six thousand, four hundred forty-two".