13720574 has 16 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5863704.

The previous prime is 13720543. The next prime is 13720589. The reversal of 13720574 is 47502731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697 + ... + 7035.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^13720574 is an apocalyptic number.

13720574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13720574 is a deficient number, since it is larger than the sum of its proper divisors (9866626).

13720574 is a wasteful number, since it uses less digits than its factorization.

13720574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13720574 is about 3704.1293173970. The cubic root of 13720574 is about 239.3999710126.

The spelling of 13720574 in words is "thirteen million, seven hundred twenty thousand, five hundred seventy-four".