13718642 has 16 divisors (see below), whose sum is σ = 24019200. Its totient is φ = 5754048.

The previous prime is 13718629. The next prime is 13718657. The reversal of 13718642 is 24681731.

It is a super-4 number, since 4×13718642⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 13718599 and 13718608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9767 + ... + 11082.

It is an arithmetic number, because the mean of its divisors is an integer number (1501200).

Almost surely, 2^13718642 is an apocalyptic number.

13718642 is a deficient number, since it is larger than the sum of its proper divisors (10300558).

13718642 is a wasteful number, since it uses less digits than its factorization.

13718642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20905.

The product of its digits is 8064, while the sum is 32.

The square root of 13718642 is about 3703.8685181847. The cubic root of 13718642 is about 239.3887338138.

The spelling of 13718642 in words is "thirteen million, seven hundred eighteen thousand, six hundred forty-two".