2804891136 has 80 divisors (see below), whose sum is σ = 7730197200. Its totient is φ = 902709248.

The previous prime is 2804891041. The next prime is 2804891137. The reversal of 2804891136 is 6311984082.

It is a super-2 number, since 2×2804891136² = 15734828569622740992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804891137) 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, 13060 + ... + 76028.

It is an arithmetic number, because the mean of its divisors is an integer number (96627465).

Almost surely, 2^2804891136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2804891136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3865098600).

2804891136 is an abundant number, since it is smaller than the sum of its proper divisors (4925306064).

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

2804891136 is an equidigital number, since it uses as much as digits as its factorization.

2804891136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63019 (or 63003 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 2804891136 is about 52961.2229466050. Note that the first 3 decimals coincide. The cubic root of 2804891136 is about 1410.2799665385.

It can be divided in two parts, 280489 and 1136, that added together give a triangular number (281625 = T₇₅₀).

The spelling of 2804891136 in words is "two billion, eight hundred four million, eight hundred ninety-one thousand, one hundred thirty-six".