222749630 has 8 divisors (see below), whose sum is σ = 400949352. Its totient is φ = 89099848.

The previous prime is 222749629. The next prime is 222749647. The reversal of 222749630 is 36947222.

It is a happy number.

222749630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11137472 + ... + 11137491.

It is an arithmetic number, because the mean of its divisors is an integer number (50118669).

Almost surely, 2^222749630 is an apocalyptic number.

222749630 is a deficient number, since it is larger than the sum of its proper divisors (178199722).

222749630 is a wasteful number, since it uses less digits than its factorization.

222749630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22274970.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 222749630 is about 14924.7991611278. The cubic root of 222749630 is about 606.1856674570.

The spelling of 222749630 in words is "two hundred twenty-two million, seven hundred forty-nine thousand, six hundred thirty".