13690056 has 16 divisors (see below), whose sum is σ = 34225200. Its totient is φ = 4563344.

The previous prime is 13690031. The next prime is 13690087. The reversal of 13690056 is 65009631.

It is a happy number.

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, 285186 + ... + 285233.

It is an arithmetic number, because the mean of its divisors is an integer number (2139075).

Almost surely, 2^13690056 is an apocalyptic number.

It is an amenable number.

13690056 is an abundant number, since it is smaller than the sum of its proper divisors (20535144).

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

13690056 is a wasteful number, since it uses less digits than its factorization.

13690056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570428 (or 570424 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 13690056 is about 3700.0075675598. The cubic root of 13690056 is about 239.2223440461. Note that the first 3 decimals are identical.

Adding to 13690056 its reverse (65009631), we get a palindrome (78699687).

The spelling of 13690056 in words is "thirteen million, six hundred ninety thousand, fifty-six".