222830645 has 16 divisors (see below), whose sum is σ = 283523328. Its totient is φ = 167543040.

The previous prime is 222830633. The next prime is 222830653. The reversal of 222830645 is 546038222.

It is not a de Polignac number, because 222830645 - 2⁶ = 222830581 is a prime.

It is a super-2 number, since 2×222830645² = 99306992702232050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80840 + ... + 83550.

It is an arithmetic number, because the mean of its divisors is an integer number (17720208).

Almost surely, 2^222830645 is an apocalyptic number.

It is an amenable number.

222830645 is a deficient number, since it is larger than the sum of its proper divisors (60692683).

222830645 is a wasteful number, since it uses less digits than its factorization.

222830645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 222830645 is about 14927.5130212638. The cubic root of 222830645 is about 606.2591493287.

Adding to 222830645 its reverse (546038222), we get a palindrome (768868867).

The spelling of 222830645 in words is "two hundred twenty-two million, eight hundred thirty thousand, six hundred forty-five".