222023240 has 32 divisors (see below), whose sum is σ = 515669760. Its totient is φ = 85944000.

The previous prime is 222023239. The next prime is 222023251. The reversal of 222023240 is 42320222.

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, 88286 + ... + 90765.

It is an arithmetic number, because the mean of its divisors is an integer number (16114680).

Almost surely, 2^222023240 is an apocalyptic number.

222023240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222023240 is an abundant number, since it is smaller than the sum of its proper divisors (293646520).

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

222023240 is a wasteful number, since it uses less digits than its factorization.

222023240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179093 (or 179089 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 222023240 is about 14900.4442886781. Note that the first 3 decimals coincide. The cubic root of 222023240 is about 605.5260229435.

Adding to 222023240 its reverse (42320222), we get a palindrome (264343462).

The spelling of 222023240 in words is "two hundred twenty-two million, twenty-three thousand, two hundred forty".