172630140 has 48 divisors (see below), whose sum is σ = 484074528. Its totient is φ = 45967104.

The previous prime is 172630093. The next prime is 172630151. The reversal of 172630140 is 41036271.

It is a self number, because there is not a number n which added to its sum of digits gives 172630140.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 49494 + ... + 52866.

It is an arithmetic number, because the mean of its divisors is an integer number (10084886).

Almost surely, 2^172630140 is an apocalyptic number.

172630140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172630140 is an abundant number, since it is smaller than the sum of its proper divisors (311444388).

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

172630140 is a wasteful number, since it uses less digits than its factorization.

172630140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238 (or 4236 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 172630140 is about 13138.8789476119. The cubic root of 172630140 is about 556.8080955067.

The spelling of 172630140 in words is "one hundred seventy-two million, six hundred thirty thousand, one hundred forty".