13309730 has 32 divisors (see below), whose sum is σ = 27651456. Its totient is φ = 4518144.

The previous prime is 13309729. The next prime is 13309739. The reversal of 13309730 is 3790331.

It is a self number, because there is not a number n which added to its sum of digits gives 13309730.

It is not an unprimeable number, because it can be changed into a prime (13309739) 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, 6602 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (864108).

Almost surely, 2^13309730 is an apocalyptic number.

13309730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13309730 is an abundant number, since it is smaller than the sum of its proper divisors (14341726).

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

13309730 is a wasteful number, since it uses less digits than its factorization.

13309730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 13309730 is about 3648.2502655383. The cubic root of 13309730 is about 236.9862134206.

The spelling of 13309730 in words is "thirteen million, three hundred nine thousand, seven hundred thirty".