13920826 has 8 divisors (see below), whose sum is σ = 21073140. Its totient is φ = 6896448.

The previous prime is 13920811. The next prime is 13920833. The reversal of 13920826 is 62802931.

13920826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13432225 + 488601 = 3665^2 + 699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 31711 + ... + 32146.

Almost surely, 2^13920826 is an apocalyptic number.

13920826 is a deficient number, since it is larger than the sum of its proper divisors (7152314).

13920826 is a wasteful number, since it uses less digits than its factorization.

13920826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63968.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13920826 is about 3731.0623152127. The cubic root of 13920826 is about 240.5590324816.

The spelling of 13920826 in words is "thirteen million, nine hundred twenty thousand, eight hundred twenty-six".