3820289856 has 28 divisors (see below), whose sum is σ = 10107850752. Its totient is φ = 1273429888.

The previous prime is 3820289839. The next prime is 3820289909. The reversal of 3820289856 is 6589820283.

It is a super-2 number, since 2×3820289856² = 29189229167713001472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3820289799 and 3820289808.

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, 9948480 + ... + 9948863.

Almost surely, 2^3820289856 is an apocalyptic number.

It is an amenable number.

3820289856 is an abundant number, since it is smaller than the sum of its proper divisors (6287560896).

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

3820289856 is a wasteful number, since it uses less digits than its factorization.

3820289856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19897358 (or 19897348 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 3820289856 is about 61808.4933969434. The cubic root of 3820289856 is about 1563.2632021595.

The spelling of 3820289856 in words is "three billion, eight hundred twenty million, two hundred eighty-nine thousand, eight hundred fifty-six".