172944190 has 16 divisors (see below), whose sum is σ = 312246000. Its totient is φ = 68967360.

The previous prime is 172944157. The next prime is 172944203. The reversal of 172944190 is 91449271.

It is a super-2 number, since 2×172944190² = 59819385709512200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22815 + ... + 29434.

It is an arithmetic number, because the mean of its divisors is an integer number (19515375).

Almost surely, 2^172944190 is an apocalyptic number.

172944190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172944190 is a deficient number, since it is larger than the sum of its proper divisors (139301810).

172944190 is a wasteful number, since it uses less digits than its factorization.

172944190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52587.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 172944190 is about 13150.8246889691. The cubic root of 172944190 is about 557.1455407341.

The spelling of 172944190 in words is "one hundred seventy-two million, nine hundred forty-four thousand, one hundred ninety".