222328420 has 12 divisors (see below), whose sum is σ = 466889724. Its totient is φ = 88931360.

The previous prime is 222328399. The next prime is 222328423. The reversal of 222328420 is 24823222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115949824 + 106378596 = 10768^2 + 10314^2 .

It is not an unprimeable number, because it can be changed into a prime (222328423) 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, 5558191 + ... + 5558230.

It is an arithmetic number, because the mean of its divisors is an integer number (38907477).

Almost surely, 2^222328420 is an apocalyptic number.

222328420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222328420 is an abundant number, since it is smaller than the sum of its proper divisors (244561304).

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

222328420 is a wasteful number, since it uses less digits than its factorization.

222328420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116430 (or 11116428 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 222328420 is about 14910.6814062939. The cubic root of 222328420 is about 605.8033359958.

The spelling of 222328420 in words is "two hundred twenty-two million, three hundred twenty-eight thousand, four hundred twenty".