381020 has 12 divisors (see below), whose sum is σ = 800184. Its totient is φ = 152400.

The previous prime is 381019. The next prime is 381037. The reversal of 381020 is 20183.

It is a junction number, because it is equal to n+sod(n) for n = 380986 and 381004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9506 + ... + 9545.

It is an arithmetic number, because the mean of its divisors is an integer number (66682).

2³⁸¹⁰²⁰ is an apocalyptic number.

It is an amenable number.

381020 is an abundant number, since it is smaller than the sum of its proper divisors (419164).

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

381020 is a wasteful number, since it uses less digits than its factorization.

381020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19060 (or 19058 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 381020 is about 617.2681751071. The cubic root of 381020 is about 72.4963137246.

The spelling of 381020 in words is "three hundred eighty-one thousand, twenty".