194172236 has 12 divisors (see below), whose sum is σ = 341837328. Its totient is φ = 96504432.

The previous prime is 194172227. The next prime is 194172241. The reversal of 194172236 is 632271491.

194172236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 194172196 and 194172205.

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, 144671 + ... + 146006.

It is an arithmetic number, because the mean of its divisors is an integer number (28486444).

Almost surely, 2^194172236 is an apocalyptic number.

It is an amenable number.

194172236 is a deficient number, since it is larger than the sum of its proper divisors (147665092).

194172236 is a wasteful number, since it uses less digits than its factorization.

194172236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290848 (or 290846 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 194172236 is about 13934.5698175437. The cubic root of 194172236 is about 579.0673039509.

The spelling of 194172236 in words is "one hundred ninety-four million, one hundred seventy-two thousand, two hundred thirty-six".