13385720 has 16 divisors (see below), whose sum is σ = 30117960. Its totient is φ = 5354272.

The previous prime is 13385699. The next prime is 13385731. The reversal of 13385720 is 2758331.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167282 + ... + 167361.

Almost surely, 2^13385720 is an apocalyptic number.

13385720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13385720 is an abundant number, since it is smaller than the sum of its proper divisors (16732240).

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

13385720 is a wasteful number, since it uses less digits than its factorization.

13385720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334654 (or 334650 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 13385720 is about 3658.6500242576. The cubic root of 13385720 is about 237.4363707661.

The spelling of 13385720 in words is "thirteen million, three hundred eighty-five thousand, seven hundred twenty".