13659730 has 48 divisors (see below), whose sum is σ = 29134296. Its totient is φ = 4596480.

The previous prime is 13659713. The next prime is 13659731. The reversal of 13659730 is 3795631.

It can be written as a sum of positive squares in 4 ways, for example, as 9790641 + 3869089 = 3129^2 + 1967^2 .

It is not an unprimeable number, because it can be changed into a prime (13659731) 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 23 ways as a sum of consecutive naturals, for example, 29662 + ... + 30118.

Almost surely, 2^13659730 is an apocalyptic number.

13659730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13659730 is an abundant number, since it is smaller than the sum of its proper divisors (15474566).

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

13659730 is a wasteful number, since it uses less digits than its factorization.

13659730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 13659730 is about 3695.9071958046. The cubic root of 13659730 is about 239.0455729112.

The spelling of 13659730 in words is "thirteen million, six hundred fifty-nine thousand, seven hundred thirty".