172200044 has 12 divisors (see below), whose sum is σ = 301644168. Its totient is φ = 86016000.

The previous prime is 172200019. The next prime is 172200101. The reversal of 172200044 is 440002271.

It is a junction number, because it is equal to n+sod(n) for n = 172199989 and 172200025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16277 + ... + 24684.

It is an arithmetic number, because the mean of its divisors is an integer number (25137014).

Almost surely, 2^172200044 is an apocalyptic number.

It is an amenable number.

172200044 is a deficient number, since it is larger than the sum of its proper divisors (129444124).

172200044 is a wasteful number, since it uses less digits than its factorization.

172200044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42016 (or 42014 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 172200044 is about 13122.5014383691. The cubic root of 172200044 is about 556.3452947201.

The spelling of 172200044 in words is "one hundred seventy-two million, two hundred thousand, forty-four".