13999038 has 8 divisors (see below), whose sum is σ = 27998088. Its totient is φ = 4666344.

The previous prime is 13999009. The next prime is 13999057. The reversal of 13999038 is 83099931.

It is a happy number.

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

13999038 is an admirable number.

It is a zygodrome in base 7.

It is a congruent number.

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, 1166581 + ... + 1166592.

It is an arithmetic number, because the mean of its divisors is an integer number (3499761).

Almost surely, 2^13999038 is an apocalyptic number.

13999038 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.

13999038 is a wasteful number, since it uses less digits than its factorization.

13999038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333178.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 13999038 is about 3741.5288319082. The cubic root of 13999038 is about 241.0087059176.

The spelling of 13999038 in words is "thirteen million, nine hundred ninety-nine thousand, thirty-eight".