13920635 has 24 divisors (see below), whose sum is σ = 18448080. Its totient is φ = 10055232.

The previous prime is 13920587. The next prime is 13920649. The reversal of 13920635 is 53602931.

It is not a de Polignac number, because 13920635 - 2²⁰ = 12872059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13920598 and 13920607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50117 + ... + 50393.

It is an arithmetic number, because the mean of its divisors is an integer number (768670).

Almost surely, 2^13920635 is an apocalyptic number.

13920635 is a deficient number, since it is larger than the sum of its proper divisors (4527445).

13920635 is a wasteful number, since it uses less digits than its factorization.

13920635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 13920635 is about 3731.0367191975. The cubic root of 13920635 is about 240.5579322839.

The spelling of 13920635 in words is "thirteen million, nine hundred twenty thousand, six hundred thirty-five".