13442866 has 4 divisors (see below), whose sum is σ = 20164302. Its totient is φ = 6721432.

The previous prime is 13442857. The next prime is 13442873. The reversal of 13442866 is 66824431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66824431 = 467 ⋅143093.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 4532641 = 2985^2 + 2129^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360715 + ... + 3360718.

Almost surely, 2^13442866 is an apocalyptic number.

13442866 is a deficient number, since it is larger than the sum of its proper divisors (6721436).

13442866 is an equidigital number, since it uses as much as digits as its factorization.

13442866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721435.

The product of its digits is 27648, while the sum is 34.

The square root of 13442866 is about 3666.4514179244. The cubic root of 13442866 is about 237.7737769891.

The spelling of 13442866 in words is "thirteen million, four hundred forty-two thousand, eight hundred sixty-six".