222424000 has 56 divisors (see below), whose sum is σ = 550852848. Its totient is φ = 88966400.

The previous prime is 222423979. The next prime is 222424009. The reversal of 222424000 is 424222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222424009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5902 + ... + 21901.

It is an arithmetic number, because the mean of its divisors is an integer number (9836658).

Almost surely, 2^222424000 is an apocalyptic number.

222424000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222424000 is an abundant number, since it is smaller than the sum of its proper divisors (328428848).

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

222424000 is an equidigital number, since it uses as much as digits as its factorization.

222424000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27830 (or 27810 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 222424000 is about 14913.8861468096. The cubic root of 222424000 is about 605.8901360959.

Adding to 222424000 its reverse (424222), we get a palindrome (222848222).

The spelling of 222424000 in words is "two hundred twenty-two million, four hundred twenty-four thousand".