13729974 has 16 divisors (see below), whose sum is σ = 27512112. Its totient is φ = 4567968.

The previous prime is 13729973. The next prime is 13730023. The reversal of 13729974 is 47992731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13729973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1812 + ... + 5544.

It is an arithmetic number, because the mean of its divisors is an integer number (1719507).

Almost surely, 2^13729974 is an apocalyptic number.

13729974 is an abundant number, since it is smaller than the sum of its proper divisors (13782138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13729974 is a wasteful number, since it uses less digits than its factorization.

13729974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351.

The product of its digits is 95256, while the sum is 42.

The square root of 13729974 is about 3705.3979543363. The cubic root of 13729974 is about 239.4546297078.

The spelling of 13729974 in words is "thirteen million, seven hundred twenty-nine thousand, nine hundred seventy-four".