212272872 has 64 divisors (see below), whose sum is σ = 626073600. Its totient is φ = 58691520.

The previous prime is 212272861. The next prime is 212272909. The reversal of 212272872 is 278272212.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15172 + ... + 25587.

It is an arithmetic number, because the mean of its divisors is an integer number (9782400).

Almost surely, 2^212272872 is an apocalyptic number.

It is an amenable number.

212272872 is an abundant number, since it is smaller than the sum of its proper divisors (413800728).

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

212272872 is a wasteful number, since it uses less digits than its factorization.

212272872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40806 (or 40802 counting only the distinct ones).

The product of its digits is 12544, while the sum is 33.

The square root of 212272872 is about 14569.5872281956. The cubic root of 212272872 is about 596.5289135436.

The spelling of 212272872 in words is "two hundred twelve million, two hundred seventy-two thousand, eight hundred seventy-two".