222783942 has 32 divisors (see below), whose sum is σ = 454857984. Its totient is φ = 72727200.

The previous prime is 222783923. The next prime is 222783943. The reversal of 222783942 is 249387222.

It is a self number, because there is not a number n which added to its sum of digits gives 222783942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222783943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65217 + ... + 68547.

It is an arithmetic number, because the mean of its divisors is an integer number (14214312).

Almost surely, 2^222783942 is an apocalyptic number.

222783942 is an abundant number, since it is smaller than the sum of its proper divisors (232074042).

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

222783942 is a wasteful number, since it uses less digits than its factorization.

222783942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564.

The product of its digits is 96768, while the sum is 39.

The square root of 222783942 is about 14925.9486130698. The cubic root of 222783942 is about 606.2167911522.

The spelling of 222783942 in words is "two hundred twenty-two million, seven hundred eighty-three thousand, nine hundred forty-two".