381633222 has 16 divisors (see below), whose sum is σ = 769277952. Its totient is φ = 126209160.

The previous prime is 381633193. The next prime is 381633229. The reversal of 381633222 is 222336183.

It is a super-2 number, since 2×381633222² = 291287832268202568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381633222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381633229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249654 + ... + 251177.

It is an arithmetic number, because the mean of its divisors is an integer number (48079872).

Almost surely, 2^381633222 is an apocalyptic number.

381633222 is an abundant number, since it is smaller than the sum of its proper divisors (387644730).

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

381633222 is a wasteful number, since it uses less digits than its factorization.

381633222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500963.

The product of its digits is 10368, while the sum is 30.

The square root of 381633222 is about 19535.4350348284. The cubic root of 381633222 is about 725.3518526775.

The spelling of 381633222 in words is "three hundred eighty-one million, six hundred thirty-three thousand, two hundred twenty-two".