13566442 has 16 divisors (see below), whose sum is σ = 21632832. Its totient is φ = 6358720.

The previous prime is 13566431. The next prime is 13566451. The reversal of 13566442 is 24466531.

13566442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9933 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (1352052).

Almost surely, 2^13566442 is an apocalyptic number.

13566442 is a deficient number, since it is larger than the sum of its proper divisors (8066390).

13566442 is a wasteful number, since it uses less digits than its factorization.

13566442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its digits is 17280, while the sum is 31.

The square root of 13566442 is about 3683.2651275736. The cubic root of 13566442 is about 238.5001486989.

The spelling of 13566442 in words is "thirteen million, five hundred sixty-six thousand, four hundred forty-two".