13998094402 has 4 divisors (see below), whose sum is σ = 20997141606. Its totient is φ = 6999047200.

The previous prime is 13998094391. The next prime is 13998094427. The reversal of 13998094402 is 20449089931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8979647121 + 5018447281 = 94761^2 + 70841^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499523599 + ... + 3499523602.

Almost surely, 2^13998094402 is an apocalyptic number.

13998094402 is a deficient number, since it is larger than the sum of its proper divisors (6999047204).

13998094402 is an equidigital number, since it uses as much as digits as its factorization.

13998094402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6999047203.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 13998094402 in words is "thirteen billion, nine hundred ninety-eight million, ninety-four thousand, four hundred two".