3020857866 has 36 divisors (see below), whose sum is σ = 7050630678. Its totient is φ = 929236032.

The previous prime is 3020857843. The next prime is 3020857883. The reversal of 3020857866 is 6687580203.

It can be written as a sum of positive squares in 3 ways, for example, as 1542839841 + 1478018025 = 39279^2 + 38445^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 838966 + ... + 842558.

Almost surely, 2^3020857866 is an apocalyptic number.

3020857866 is an abundant number, since it is smaller than the sum of its proper divisors (4029772812).

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

3020857866 is an equidigital number, since it uses as much as digits as its factorization.

3020857866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 3020857866 is about 54962.3313370166. The cubic root of 3020857866 is about 1445.5843258059.

The spelling of 3020857866 in words is "three billion, twenty million, eight hundred fifty-seven thousand, eight hundred sixty-six".