2805888440 has 32 divisors (see below), whose sum is σ = 6319572480. Its totient is φ = 1121231232.

The previous prime is 2805888419. The next prime is 2805888443. The reversal of 2805888440 is 448885082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805888443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5897 + ... + 75143.

It is an arithmetic number, because the mean of its divisors is an integer number (197486640).

Almost surely, 2^2805888440 is an apocalyptic number.

2805888440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2805888440 is an abundant number, since it is smaller than the sum of its proper divisors (3513684040).

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

2805888440 is a wasteful number, since it uses less digits than its factorization.

2805888440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70271 (or 70267 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 47.

The square root of 2805888440 is about 52970.6375268412. The cubic root of 2805888440 is about 1410.4470925957.

The spelling of 2805888440 in words is "two billion, eight hundred five million, eight hundred eighty-eight thousand, four hundred forty".