444444172 has 12 divisors (see below), whose sum is σ = 778991416. Its totient is φ = 221875200.

The previous prime is 444444149. The next prime is 444444197. The reversal of 444444172 is 271444444.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 83829 + ... + 88972.

Almost surely, 2^444444172 is an apocalyptic number.

It is an amenable number.

444444172 is a deficient number, since it is larger than the sum of its proper divisors (334547244).

444444172 is a wasteful number, since it uses less digits than its factorization.

444444172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173448 (or 173446 counting only the distinct ones).

The product of its digits is 57344, while the sum is 34.

The square root of 444444172 is about 21081.8446062009. The cubic root of 444444172 is about 763.1426724333.

The spelling of 444444172 in words is "four hundred forty-four million, four hundred forty-four thousand, one hundred seventy-two".