381820222 has 32 divisors (see below), whose sum is σ = 665701632. Its totient is φ = 160864704.

The previous prime is 381820213. The next prime is 381820223. The reversal of 381820222 is 222028183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381820223) 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, 558693 + ... + 559375.

It is an arithmetic number, because the mean of its divisors is an integer number (20803176).

Almost surely, 2^381820222 is an apocalyptic number.

381820222 is a deficient number, since it is larger than the sum of its proper divisors (283881410).

381820222 is a wasteful number, since it uses less digits than its factorization.

381820222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 381820222 is about 19540.2206231148. The cubic root of 381820222 is about 725.4703072913.

The spelling of 381820222 in words is "three hundred eighty-one million, eight hundred twenty thousand, two hundred twenty-two".