172000044 has 48 divisors (see below), whose sum is σ = 461311200. Its totient is φ = 55355328.

The previous prime is 172000021. The next prime is 172000057. The reversal of 172000044 is 440000271.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 171999990 and 172000026.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24327 + ... + 30590.

It is an arithmetic number, because the mean of its divisors is an integer number (9610650).

Almost surely, 2^172000044 is an apocalyptic number.

It is an amenable number.

172000044 is an abundant number, since it is smaller than the sum of its proper divisors (289311156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172000044 is a wasteful number, since it uses less digits than its factorization.

172000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54959 (or 54951 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 172000044 is about 13114.8787260882. The cubic root of 172000044 is about 556.1298240740.

The spelling of 172000044 in words is "one hundred seventy-two million, forty-four", and thus it is an aban number.