381822200 has 24 divisors (see below), whose sum is σ = 887737080. Its totient is φ = 152728800.

The previous prime is 381822197. The next prime is 381822209. The reversal of 381822200 is 2228183.

It is a self number, because there is not a number n which added to its sum of digits gives 381822200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381822209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 954356 + ... + 954755.

It is an arithmetic number, because the mean of its divisors is an integer number (36989045).

Almost surely, 2^381822200 is an apocalyptic number.

It is an amenable number.

381822200 is an abundant number, since it is smaller than the sum of its proper divisors (505914880).

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

381822200 is a wasteful number, since it uses less digits than its factorization.

381822200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909127 (or 1909118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 381822200 is about 19540.2712366026. The cubic root of 381822200 is about 725.4715600430.

The spelling of 381822200 in words is "three hundred eighty-one million, eight hundred twenty-two thousand, two hundred".