13689380 has 12 divisors (see below), whose sum is σ = 28747740. Its totient is φ = 5475744.

The previous prime is 13689359. The next prime is 13689397. The reversal of 13689380 is 8398631.

It can be written as a sum of positive squares in 2 ways, for example, as 10086976 + 3602404 = 3176^2 + 1898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342215 + ... + 342254.

It is an arithmetic number, because the mean of its divisors is an integer number (2395645).

Almost surely, 2^13689380 is an apocalyptic number.

13689380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13689380 is an abundant number, since it is smaller than the sum of its proper divisors (15058360).

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

13689380 is a wasteful number, since it uses less digits than its factorization.

13689380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684478 (or 684476 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 13689380 is about 3699.9162152676. The cubic root of 13689380 is about 239.2184064687.

The spelling of 13689380 in words is "thirteen million, six hundred eighty-nine thousand, three hundred eighty".