13442747 has 16 divisors (see below), whose sum is σ = 15129600. Its totient is φ = 11884320.

The previous prime is 13442743. The next prime is 13442749. The reversal of 13442747 is 74724431.

It is a cyclic number.

It is not a de Polignac number, because 13442747 - 2² = 13442743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13442743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16688 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (945600).

Almost surely, 2^13442747 is an apocalyptic number.

13442747 is a deficient number, since it is larger than the sum of its proper divisors (1686853).

13442747 is a wasteful number, since it uses less digits than its factorization.

13442747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its digits is 18816, while the sum is 32.

The square root of 13442747 is about 3666.4351896631. The cubic root of 13442747 is about 237.7730753737.

The spelling of 13442747 in words is "thirteen million, four hundred forty-two thousand, seven hundred forty-seven".