13309488 has 40 divisors (see below), whose sum is σ = 38204400. Its totient is φ = 4436352.

The previous prime is 13309451. The next prime is 13309493. The reversal of 13309488 is 88490331.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 14973 + ... + 15836.

It is an arithmetic number, because the mean of its divisors is an integer number (955110).

Almost surely, 2^13309488 is an apocalyptic number.

13309488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13309488 is an abundant number, since it is smaller than the sum of its proper divisors (24894912).

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

13309488 is a wasteful number, since it uses less digits than its factorization.

13309488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30826 (or 30814 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 13309488 is about 3648.2170988032. The cubic root of 13309488 is about 236.9847771027.

The spelling of 13309488 in words is "thirteen million, three hundred nine thousand, four hundred eighty-eight".