172838212 has 24 divisors (see below), whose sum is σ = 320544000. Its totient is φ = 81315936.

The previous prime is 172838209. The next prime is 172838233. The reversal of 172838212 is 212838271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3693 + ... + 18955.

It is an arithmetic number, because the mean of its divisors is an integer number (13356000).

Almost surely, 2^172838212 is an apocalyptic number.

It is an amenable number.

172838212 is a deficient number, since it is larger than the sum of its proper divisors (147705788).

172838212 is a wasteful number, since it uses less digits than its factorization.

172838212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15435 (or 15433 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 172838212 is about 13146.7947424458. The cubic root of 172838212 is about 557.0317135799.

The spelling of 172838212 in words is "one hundred seventy-two million, eight hundred thirty-eight thousand, two hundred twelve".