13309492 has 48 divisors (see below), whose sum is σ = 28344960. Its totient is φ = 5346432.

The previous prime is 13309451. The next prime is 13309493. The reversal of 13309492 is 29490331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13309493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29823 + ... + 30265.

It is an arithmetic number, because the mean of its divisors is an integer number (590520).

Almost surely, 2^13309492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13309492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14172480).

13309492 is an abundant number, since it is smaller than the sum of its proper divisors (15035468).

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

13309492 is a wasteful number, since it uses less digits than its factorization.

13309492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 13309492 is about 3648.2176470161. The cubic root of 13309492 is about 236.9848008436.

The spelling of 13309492 in words is "thirteen million, three hundred nine thousand, four hundred ninety-two".