222238828 has 12 divisors (see below), whose sum is σ = 444477712. Its totient is φ = 95245200.

The previous prime is 222238823. The next prime is 222238837. The reversal of 222238828 is 828832222.

222238828 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (222238823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3968523 + ... + 3968578.

Almost surely, 2^222238828 is an apocalyptic number.

222238828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

222238828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222238828 is a wasteful number, since it uses less digits than its factorization.

222238828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7937112 (or 7937110 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 222238828 is about 14907.6768143128. The cubic root of 222238828 is about 605.7219512520.

The spelling of 222238828 in words is "two hundred twenty-two million, two hundred thirty-eight thousand, eight hundred twenty-eight".