13443660 has 36 divisors (see below), whose sum is σ = 40779648. Its totient is φ = 3584928.

The previous prime is 13443643. The next prime is 13443671. The reversal of 13443660 is 6634431.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37164 + ... + 37523.

It is an arithmetic number, because the mean of its divisors is an integer number (1132768).

Almost surely, 2^13443660 is an apocalyptic number.

13443660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13443660 is an abundant number, since it is smaller than the sum of its proper divisors (27335988).

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

13443660 is a wasteful number, since it uses less digits than its factorization.

13443660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74702 (or 74697 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 13443660 is about 3666.5596954093. The cubic root of 13443660 is about 237.7784582493.

The spelling of 13443660 in words is "thirteen million, four hundred forty-three thousand, six hundred sixty".