172750228 has 24 divisors (see below), whose sum is σ = 356647424. Its totient is φ = 71647200.

The previous prime is 172750213. The next prime is 172750229. The reversal of 172750228 is 822057271.

It is a junction number, because it is equal to n+sod(n) for n = 172750193 and 172750202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172750229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98643 + ... + 100378.

Almost surely, 2^172750228 is an apocalyptic number.

It is an amenable number.

172750228 is an abundant number, since it is smaller than the sum of its proper divisors (183897196).

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

172750228 is a wasteful number, since it uses less digits than its factorization.

172750228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199063 (or 199061 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 172750228 is about 13143.4481016208. The cubic root of 172750228 is about 556.9371777781.

The spelling of 172750228 in words is "one hundred seventy-two million, seven hundred fifty thousand, two hundred twenty-eight".