2805032920 has 16 divisors (see below), whose sum is σ = 6311324160. Its totient is φ = 1122013152.

The previous prime is 2805032911. The next prime is 2805032953. The reversal of 2805032920 is 292305082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35062872 + ... + 35062951.

It is an arithmetic number, because the mean of its divisors is an integer number (394457760).

Almost surely, 2^2805032920 is an apocalyptic number.

2805032920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2805032920 is an abundant number, since it is smaller than the sum of its proper divisors (3506291240).

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

2805032920 is a wasteful number, since it uses less digits than its factorization.

2805032920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70125834 (or 70125830 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2805032920 is about 52962.5614939459. The cubic root of 2805032920 is about 1410.3037288113.

The spelling of 2805032920 in words is "two billion, eight hundred five million, thirty-two thousand, nine hundred twenty".