549866212 has 24 divisors (see below), whose sum is σ = 1108134720. Its totient is φ = 233856480.

The previous prime is 549866209. The next prime is 549866227. The reversal of 549866212 is 212668945.

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, 71287 + ... + 78622.

It is an arithmetic number, because the mean of its divisors is an integer number (46172280).

Almost surely, 2^549866212 is an apocalyptic number.

It is an amenable number.

549866212 is an abundant number, since it is smaller than the sum of its proper divisors (558268508).

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

549866212 is a wasteful number, since it uses less digits than its factorization.

549866212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150051 (or 150049 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 549866212 is about 23449.2262558917. The cubic root of 549866212 is about 819.2548316653.

It can be divided in two parts, 549 and 866212, that added together give a square (866761 = 931²).

The spelling of 549866212 in words is "five hundred forty-nine million, eight hundred sixty-six thousand, two hundred twelve".