222798785 has 32 divisors (see below), whose sum is σ = 299400192. Its totient is φ = 157798080.

The previous prime is 222798761. The next prime is 222798799. The reversal of 222798785 is 587897222.

222798785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-222798785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379262 + ... + 379848.

It is an arithmetic number, because the mean of its divisors is an integer number (9356256).

Almost surely, 2^222798785 is an apocalyptic number.

It is an amenable number.

222798785 is a deficient number, since it is larger than the sum of its proper divisors (76601407).

222798785 is a wasteful number, since it uses less digits than its factorization.

222798785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its digits is 1128960, while the sum is 50.

The square root of 222798785 is about 14926.4458261168. The cubic root of 222798785 is about 606.2302539358.

The spelling of 222798785 in words is "two hundred twenty-two million, seven hundred ninety-eight thousand, seven hundred eighty-five".