13999210 has 32 divisors (see below), whose sum is σ = 25915392. Its totient is φ = 5443200.

The previous prime is 13999189. The next prime is 13999213. The reversal of 13999210 is 1299931.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13999213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 92635 + ... + 92785.

It is an arithmetic number, because the mean of its divisors is an integer number (809856).

Almost surely, 2^13999210 is an apocalyptic number.

13999210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13999210 is a deficient number, since it is larger than the sum of its proper divisors (11916182).

13999210 is a wasteful number, since it uses less digits than its factorization.

13999210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 13999210 is about 3741.5518170941. The cubic root of 13999210 is about 241.0096929694.

It can be divided in two parts, 1399 and 9210, that added together give a square (10609 = 103²).

The spelling of 13999210 in words is "thirteen million, nine hundred ninety-nine thousand, two hundred ten".