381881300 has 36 divisors (see below), whose sum is σ = 830897340. Its totient is φ = 152344320.

The previous prime is 381881299. The next prime is 381881317. The reversal of 381881300 is 3188183.

It can be written as a sum of positive squares in 6 ways, for example, as 1943236 + 379938064 = 1394^2 + 19492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33992 + ... + 43808.

Almost surely, 2^381881300 is an apocalyptic number.

It is an amenable number.

381881300 is an abundant number, since it is smaller than the sum of its proper divisors (449016040).

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

381881300 is a wasteful number, since it uses less digits than its factorization.

381881300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220 (or 10213 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 381881300 is about 19541.7834395942. The cubic root of 381881300 is about 725.5089885959.

The spelling of 381881300 in words is "three hundred eighty-one million, eight hundred eighty-one thousand, three hundred".