838772222 has 16 divisors (see below), whose sum is σ = 1274842800. Its totient is φ = 413856000.

The previous prime is 838772201. The next prime is 838772243. The reversal of 838772222 is 222277838.

It is an interprime number because it is at equal distance from previous prime (838772201) and next prime (838772243).

It is a self number, because there is not a number n which added to its sum of digits gives 838772222.

It is a congruent number.

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, 47054 + ... + 62382.

It is an arithmetic number, because the mean of its divisors is an integer number (79677675).

Almost surely, 2^838772222 is an apocalyptic number.

838772222 is a deficient number, since it is larger than the sum of its proper divisors (436070578).

838772222 is a wasteful number, since it uses less digits than its factorization.

838772222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691.

The product of its digits is 150528, while the sum is 41.

The square root of 838772222 is about 28961.5645640908. The cubic root of 838772222 is about 943.0788670751.

The spelling of 838772222 in words is "eight hundred thirty-eight million, seven hundred seventy-two thousand, two hundred twenty-two".