3862619920 has 40 divisors (see below), whose sum is σ = 9063002520. Its totient is φ = 1530869760.

The previous prime is 3862619909. The next prime is 3862619923. The reversal of 3862619920 is 299162683.

3862619920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10679824 + 3851940096 = 3268^2 + 62064^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (3862619923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212761 + ... + 230200.

It is an arithmetic number, because the mean of its divisors is an integer number (226575063).

Almost surely, 2^3862619920 is an apocalyptic number.

It is an amenable number.

3862619920 is an abundant number, since it is smaller than the sum of its proper divisors (5200382600).

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

3862619920 is a wasteful number, since it uses less digits than its factorization.

3862619920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443083 (or 443077 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 3862619920 is about 62149.9792437616. The cubic root of 3862619920 is about 1569.0158301070.

The spelling of 3862619920 in words is "three billion, eight hundred sixty-two million, six hundred nineteen thousand, nine hundred twenty".