3820056381 has 24 divisors (see below), whose sum is σ = 5890098240. Its totient is φ = 2378678400.

The previous prime is 3820056377. The next prime is 3820056413. The reversal of 3820056381 is 1836500283.

It is not a de Polignac number, because 3820056381 - 2² = 3820056377 is a prime.

It is a super-2 number, since 2×3820056381² = 29185661508037634322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820056371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145180 + ... + 169461.

It is an arithmetic number, because the mean of its divisors is an integer number (245420760).

Almost surely, 2^3820056381 is an apocalyptic number.

It is an amenable number.

3820056381 is a deficient number, since it is larger than the sum of its proper divisors (2070041859).

3820056381 is a wasteful number, since it uses less digits than its factorization.

3820056381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314737 (or 314734 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3820056381 is about 61806.6046713456. The cubic root of 3820056381 is about 1563.2313555087.

The spelling of 3820056381 in words is "three billion, eight hundred twenty million, fifty-six thousand, three hundred eighty-one".