381820230 has 80 divisors (see below), whose sum is σ = 1120032144. Its totient is φ = 92560320.

The previous prime is 381820223. The next prime is 381820237. The reversal of 381820230 is 32028183.

381820230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (381820223) and next prime (381820237).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 381820194 and 381820203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381820237) 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 39 ways as a sum of consecutive naturals, for example, 12517 + ... + 30336.

Almost surely, 2^381820230 is an apocalyptic number.

381820230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381820230 is an abundant number, since it is smaller than the sum of its proper divisors (738211914).

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

381820230 is a wasteful number, since it uses less digits than its factorization.

381820230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42883 (or 42874 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 381820230 is about 19540.2208278208. The cubic root of 381820230 is about 725.4703123581.

The spelling of 381820230 in words is "three hundred eighty-one million, eight hundred twenty thousand, two hundred thirty".