13660574 has 8 divisors (see below), whose sum is σ = 21381840. Its totient is φ = 6533296.

The previous prime is 13660573. The next prime is 13660589. The reversal of 13660574 is 47506631.

13660574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×13660574² = 373222564018952, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13660574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148439 + ... + 148530.

It is an arithmetic number, because the mean of its divisors is an integer number (2672730).

Almost surely, 2^13660574 is an apocalyptic number.

13660574 is a deficient number, since it is larger than the sum of its proper divisors (7721266).

13660574 is a wasteful number, since it uses less digits than its factorization.

13660574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296994.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 13660574 is about 3696.0213743971. The cubic root of 13660574 is about 239.0504961492.

The spelling of 13660574 in words is "thirteen million, six hundred sixty thousand, five hundred seventy-four".