13399730 has 8 divisors (see below), whose sum is σ = 24119532. Its totient is φ = 5359888.

The previous prime is 13399709. The next prime is 13399811. The reversal of 13399730 is 3799331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13388281 + 11449 = 3659^2 + 107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669977 + ... + 669996.

Almost surely, 2^13399730 is an apocalyptic number.

13399730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13399730 is a deficient number, since it is larger than the sum of its proper divisors (10719802).

13399730 is a wasteful number, since it uses less digits than its factorization.

13399730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339980.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 13399730 is about 3660.5641641692. The cubic root of 13399730 is about 237.5191785067.

The spelling of 13399730 in words is "thirteen million, three hundred ninety-nine thousand, seven hundred thirty".