13628194 has 4 divisors (see below), whose sum is σ = 20442294. Its totient is φ = 6814096.

The previous prime is 13628183. The next prime is 13628201. The reversal of 13628194 is 49182631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49182631 = 6247 ⋅7873.

It can be written as a sum of positive squares in only one way, i.e., 13593969 + 34225 = 3687^2 + 185^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407047 + ... + 3407050.

Almost surely, 2^13628194 is an apocalyptic number.

13628194 is a deficient number, since it is larger than the sum of its proper divisors (6814100).

13628194 is an equidigital number, since it uses as much as digits as its factorization.

13628194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814099.

The product of its digits is 10368, while the sum is 34.

The square root of 13628194 is about 3691.6383896584. The cubic root of 13628194 is about 238.8614709314.

The spelling of 13628194 in words is "thirteen million, six hundred twenty-eight thousand, one hundred ninety-four".