3805902864 has 135 divisors (see below), whose sum is σ = 10969072023. Its totient is φ = 1231865856.

The previous prime is 3805902809. The next prime is 3805902869. The reversal of 3805902864 is 4682095083.

The square root of 3805902864 is 61692.

It is a perfect power (a square), and thus also a powerful number.

3805902864 is a `hidden beast` number, since 38 + 0 + 590 + 28 + 6 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 118984464 + 3686918400 = 10908^2 + 60720^2 .

It is a super-2 number, since 2×3805902864² = 28969793220406804992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3805902869) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 39236064 + ... + 39236160.

Almost surely, 2^3805902864 is an apocalyptic number.

3805902864 is the 61692-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3805902864

3805902864 is an abundant number, since it is smaller than the sum of its proper divisors (7163169159).

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

3805902864 is an equidigital number, since it uses as much as digits as its factorization.

3805902864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The cubic root of 3805902864 is about 1561.2983471278.

The spelling of 3805902864 in words is "three billion, eight hundred five million, nine hundred two thousand, eight hundred sixty-four".