13766642 has 8 divisors (see below), whose sum is σ = 20741616. Its totient is φ = 6852772.

The previous prime is 13766593. The next prime is 13766657. The reversal of 13766642 is 24666731.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 14708 + ... + 15615.

It is an arithmetic number, because the mean of its divisors is an integer number (2592702).

Almost surely, 2^13766642 is an apocalyptic number.

13766642 is a deficient number, since it is larger than the sum of its proper divisors (6974974).

13766642 is a wasteful number, since it uses less digits than its factorization.

13766642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30552.

The product of its digits is 36288, while the sum is 35.

The square root of 13766642 is about 3710.3425717850. The cubic root of 13766642 is about 239.6676069875.

The spelling of 13766642 in words is "thirteen million, seven hundred sixty-six thousand, six hundred forty-two".