13900328 has 16 divisors (see below), whose sum is σ = 28068180. Its totient is φ = 6415488.

The previous prime is 13900319. The next prime is 13900331. The reversal of 13900328 is 82300931.

It can be written as a sum of positive squares in 2 ways, for example, as 9746884 + 4153444 = 3122^2 + 2038^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 13900297 and 13900306.

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, 66725 + ... + 66932.

Almost surely, 2^13900328 is an apocalyptic number.

It is an amenable number.

13900328 is an abundant number, since it is smaller than the sum of its proper divisors (14167852).

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

13900328 is a wasteful number, since it uses less digits than its factorization.

13900328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133676 (or 133672 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 13900328 is about 3728.3143644280. The cubic root of 13900328 is about 240.4409024878.

The spelling of 13900328 in words is "thirteen million, nine hundred thousand, three hundred twenty-eight".