381019020 has 48 divisors (see below), whose sum is σ = 1073425920. Its totient is φ = 100979136.

The previous prime is 381019019. The next prime is 381019039. The reversal of 381019020 is 20910183.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9700 + ... + 29259.

It is an arithmetic number, because the mean of its divisors is an integer number (22363040).

Almost surely, 2^381019020 is an apocalyptic number.

381019020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381019020 is an abundant number, since it is smaller than the sum of its proper divisors (692406900).

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

381019020 is a wasteful number, since it uses less digits than its factorization.

381019020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39134 (or 39132 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 381019020 is about 19519.7085019218. The cubic root of 381019020 is about 724.9625156997.

The spelling of 381019020 in words is "three hundred eighty-one million, nineteen thousand, twenty".