222540084 has 144 divisors (see below), whose sum is σ = 660441600. Its totient is φ = 62560512.

The previous prime is 222540061. The next prime is 222540091. The reversal of 222540084 is 480045222.

It is a happy number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 257437 + ... + 258299.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^222540084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222540084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330220800).

222540084 is an abundant number, since it is smaller than the sum of its proper divisors (437901516).

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

222540084 is a wasteful number, since it uses less digits than its factorization.

222540084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 222540084 is about 14917.7774484003. Note that the first 3 decimals coincide. The cubic root of 222540084 is about 605.9955232816.

The spelling of 222540084 in words is "two hundred twenty-two million, five hundred forty thousand, eighty-four".