13309376 has 56 divisors (see below), whose sum is σ = 27980640. Its totient is φ = 6272000.

The previous prime is 13309369. The next prime is 13309393. The reversal of 13309376 is 67390331.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 131726 + ... + 131826.

Almost surely, 2^13309376 is an apocalyptic number.

13309376 is a gapful number since it is divisible by the number (16) 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 13309376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13990320).

13309376 is an abundant number, since it is smaller than the sum of its proper divisors (14671264).

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

13309376 is a wasteful number, since it uses less digits than its factorization.

13309376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 32.

The square root of 13309376 is about 3648.2017488072. The cubic root of 13309376 is about 236.9841123546.

The spelling of 13309376 in words is "thirteen million, three hundred nine thousand, three hundred seventy-six".