13999434 has 8 divisors (see below), whose sum is σ = 27998880. Its totient is φ = 4666476.

The previous prime is 13999423. The next prime is 13999441. The reversal of 13999434 is 43499931.

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

13999434 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166614 + ... + 1166625.

It is an arithmetic number, because the mean of its divisors is an integer number (3499860).

Almost surely, 2^13999434 is an apocalyptic number.

13999434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13999434 is a wasteful number, since it uses less digits than its factorization.

13999434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333244.

The product of its digits is 104976, while the sum is 42.

The square root of 13999434 is about 3741.5817510780. The cubic root of 13999434 is about 241.0109784201.

The spelling of 13999434 in words is "thirteen million, nine hundred ninety-nine thousand, four hundred thirty-four".