172630238 has 32 divisors (see below), whose sum is σ = 299255040. Its totient is φ = 73863360.

The previous prime is 172630231. The next prime is 172630253. The reversal of 172630238 is 832036271.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172630231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68570 + ... + 71042.

It is an arithmetic number, because the mean of its divisors is an integer number (9351720).

Almost surely, 2^172630238 is an apocalyptic number.

172630238 is a deficient number, since it is larger than the sum of its proper divisors (126624802).

172630238 is a wasteful number, since it uses less digits than its factorization.

172630238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 172630238 is about 13138.8826770011. The cubic root of 172630238 is about 556.8082008711.

The spelling of 172630238 in words is "one hundred seventy-two million, six hundred thirty thousand, two hundred thirty-eight".