13652720 has 40 divisors (see below), whose sum is σ = 31974144. Its totient is φ = 5421312.

The previous prime is 13652711. The next prime is 13652759. The reversal of 13652720 is 2725631.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 13652720.

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, 12017 + ... + 13103.

Almost surely, 2^13652720 is an apocalyptic number.

13652720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13652720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15987072).

13652720 is an abundant number, since it is smaller than the sum of its proper divisors (18321424).

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

13652720 is a wasteful number, since it uses less digits than its factorization.

13652720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 13652720 is about 3694.9587277803. The cubic root of 13652720 is about 239.0046741965.

The spelling of 13652720 in words is "thirteen million, six hundred fifty-two thousand, seven hundred twenty".