222472544 has 48 divisors (see below), whose sum is σ = 510804000. Its totient is φ = 95340672.

The previous prime is 222472541. The next prime is 222472553. The reversal of 222472544 is 445274222.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 222472544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222472541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842 + ... + 21110.

It is an arithmetic number, because the mean of its divisors is an integer number (10641750).

Almost surely, 2^222472544 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 222472544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255402000).

222472544 is an abundant number, since it is smaller than the sum of its proper divisors (288331456).

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

222472544 is an equidigital number, since it uses as much as digits as its factorization.

222472544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20300 (or 20278 counting only the distinct ones).

The product of its digits is 35840, while the sum is 32.

The square root of 222472544 is about 14915.5135345720. The cubic root of 222472544 is about 605.9342113625.

The spelling of 222472544 in words is "two hundred twenty-two million, four hundred seventy-two thousand, five hundred forty-four".