222672500 has 30 divisors (see below), whose sum is σ = 486945690. Its totient is φ = 89068000.

The previous prime is 222672497. The next prime is 222672559. The reversal of 222672500 is 5276222.

It can be written as a sum of positive squares in 5 ways, for example, as 128232976 + 94439524 = 11324^2 + 9718^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222672500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42035 + ... + 47034.

It is an arithmetic number, because the mean of its divisors is an integer number (16231523).

Almost surely, 2^222672500 is an apocalyptic number.

222672500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222672500 is an abundant number, since it is smaller than the sum of its proper divisors (264273190).

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

222672500 is an equidigital number, since it uses as much as digits as its factorization.

222672500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89093 (or 89076 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 222672500 is about 14922.2149830379. The cubic root of 222672500 is about 606.1156927832.

The spelling of 222672500 in words is "two hundred twenty-two million, six hundred seventy-two thousand, five hundred".