13690528 has 24 divisors (see below), whose sum is σ = 27119988. Its totient is φ = 6802944.

The previous prime is 13690519. The next prime is 13690529. The reversal of 13690528 is 82509631.

It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 1774224 = 3452^2 + 1332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13690493 and 13690502.

It is not an unprimeable number, because it can be changed into a prime (13690529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300 + ... + 6772.

Almost surely, 2^13690528 is an apocalyptic number.

It is an amenable number.

13690528 is a deficient number, since it is larger than the sum of its proper divisors (13429460).

13690528 is a wasteful number, since it uses less digits than its factorization.

13690528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 13690528 is about 3700.0713506634. The cubic root of 13690528 is about 239.2250932836.

The spelling of 13690528 in words is "thirteen million, six hundred ninety thousand, five hundred twenty-eight".