13661700 has 144 divisors (see below), whose sum is σ = 44330496. Its totient is φ = 3225600.

The previous prime is 13661689. The next prime is 13661759. The reversal of 13661700 is 716631.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120844 + ... + 120956.

Almost surely, 2^13661700 is an apocalyptic number.

13661700 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 13661700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22165248).

13661700 is an abundant number, since it is smaller than the sum of its proper divisors (30668796).

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

13661700 is a wasteful number, since it uses less digits than its factorization.

13661700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13661700 is about 3696.1736972172. The cubic root of 13661700 is about 239.0570640398.

The spelling of 13661700 in words is "thirteen million, six hundred sixty-one thousand, seven hundred".