222590720 has 72 divisors (see below), whose sum is σ = 581681520. Its totient is φ = 80936960.

The previous prime is 222590701. The next prime is 222590729. The reversal of 222590720 is 27095222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222590729) 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, 6176 + ... + 21984.

It is an arithmetic number, because the mean of its divisors is an integer number (8078910).

Almost surely, 2^222590720 is an apocalyptic number.

222590720 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 222590720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290840760).

222590720 is an abundant number, since it is smaller than the sum of its proper divisors (359090800).

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

222590720 is a wasteful number, since it uses less digits than its factorization.

222590720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15841 (or 15827 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 222590720 is about 14919.4745215775. The cubic root of 222590720 is about 606.0414818369.

The spelling of 222590720 in words is "two hundred twenty-two million, five hundred ninety thousand, seven hundred twenty".