13393660 has 72 divisors (see below), whose sum is σ = 33324480. Its totient is φ = 4507776.

The previous prime is 13393657. The next prime is 13393661. The reversal of 13393660 is 6639331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13393661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77334 + ... + 77506.

It is an arithmetic number, because the mean of its divisors is an integer number (462840).

Almost surely, 2^13393660 is an apocalyptic number.

13393660 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 13393660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16662240).

13393660 is an abundant number, since it is smaller than the sum of its proper divisors (19930820).

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

13393660 is a wasteful number, since it uses less digits than its factorization.

13393660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 13393660 is about 3659.7349630813. The cubic root of 13393660 is about 237.4833081528.

The spelling of 13393660 in words is "thirteen million, three hundred ninety-three thousand, six hundred sixty".