13930443 has 6 divisors (see below), whose sum is σ = 20121764. Its totient is φ = 9286956.

The previous prime is 13930421. The next prime is 13930451. The reversal of 13930443 is 34403931.

It is not a de Polignac number, because 13930443 - 2⁸ = 13930187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13930243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 773905 + ... + 773922.

Almost surely, 2^13930443 is an apocalyptic number.

13930443 is a deficient number, since it is larger than the sum of its proper divisors (6191321).

13930443 is a wasteful number, since it uses less digits than its factorization.

13930443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547833 (or 1547830 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 13930443 is about 3732.3508677508. The cubic root of 13930443 is about 240.6144152987.

The spelling of 13930443 in words is "thirteen million, nine hundred thirty thousand, four hundred forty-three".