222028880 has 40 divisors (see below), whose sum is σ = 517431912. Its totient is φ = 88602624.

The previous prime is 222028879. The next prime is 222028907. The reversal of 222028880 is 88820222.

It is a happy number.

222028880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 106337344 + 115691536 = 10312^2 + 10756^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 33524 + ... + 39596.

Almost surely, 2^222028880 is an apocalyptic number.

222028880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222028880 is an abundant number, since it is smaller than the sum of its proper divisors (295403032).

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

222028880 is a wasteful number, since it uses less digits than its factorization.

222028880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543 (or 6537 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 222028880 is about 14900.6335435779. The cubic root of 222028880 is about 605.5311502414.

The spelling of 222028880 in words is "two hundred twenty-two million, twenty-eight thousand, eight hundred eighty".