3806845904 has 20 divisors (see below), whose sum is σ = 7809632964. Its totient is φ = 1791456768.

The previous prime is 3806845883. The next prime is 3806845937. The reversal of 3806845904 is 4095486083.

It can be written as a sum of positive squares in 2 ways, for example, as 3570301504 + 236544400 = 59752^2 + 15380^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6997607 + ... + 6998150.

Almost surely, 2^3806845904 is an apocalyptic number.

3806845904 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3806845904 is an abundant number, since it is smaller than the sum of its proper divisors (4002787060).

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

3806845904 is a wasteful number, since it uses less digits than its factorization.

3806845904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13995782 (or 13995776 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 3806845904 is about 61699.6426569879. The cubic root of 3806845904 is about 1561.4272911439.

The spelling of 3806845904 in words is "three billion, eight hundred six million, eight hundred forty-five thousand, nine hundred four".