222057440 has 96 divisors (see below), whose sum is σ = 575618400. Its totient is φ = 80281600.

The previous prime is 222057419. The next prime is 222057449. The reversal of 222057440 is 44750222.

222057440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222057449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494336 + ... + 494784.

It is an arithmetic number, because the mean of its divisors is an integer number (5996025).

Almost surely, 2^222057440 is an apocalyptic number.

222057440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222057440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287809200).

222057440 is an abundant number, since it is smaller than the sum of its proper divisors (353560960).

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

222057440 is a wasteful number, since it uses less digits than its factorization.

222057440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 222057440 is about 14901.5918612744. The cubic root of 222057440 is about 605.5571126720.

The spelling of 222057440 in words is "two hundred twenty-two million, fifty-seven thousand, four hundred forty".