2805870924 has 144 divisors (see below), whose sum is σ = 7635386304. Its totient is φ = 866764800.

The previous prime is 2805870917. The next prime is 2805870937. The reversal of 2805870924 is 4290785082.

2805870924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2805870924² = 15745823284297227552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2805870924.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3686704 + ... + 3687464.

It is an arithmetic number, because the mean of its divisors is an integer number (53023516).

Almost surely, 2^2805870924 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 2805870924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3817693152).

2805870924 is an abundant number, since it is smaller than the sum of its proper divisors (4829515380).

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

2805870924 is a wasteful number, since it uses less digits than its factorization.

2805870924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 2805870924 is about 52970.4721897021. The cubic root of 2805870924 is about 1410.4441576438. Note that the first 3 decimals are identical.

The spelling of 2805870924 in words is "two billion, eight hundred five million, eight hundred seventy thousand, nine hundred twenty-four".