2820578928 has 80 divisors (see below), whose sum is σ = 7498853376. Its totient is φ = 913006080.

The previous prime is 2820578923. The next prime is 2820578933. The reversal of 2820578928 is 8298750282.

It is an interprime number because it is at equal distance from previous prime (2820578923) and next prime (2820578933).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820578921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435651 + ... + 442077.

Almost surely, 2^2820578928 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 2820578928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749426688).

2820578928 is an abundant number, since it is smaller than the sum of its proper divisors (4678274448).

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

2820578928 is a wasteful number, since it uses less digits than its factorization.

2820578928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702 (or 6696 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 2820578928 is about 53109.1228321463. The cubic root of 2820578928 is about 1412.9043178894.

The spelling of 2820578928 in words is "two billion, eight hundred twenty million, five hundred seventy-eight thousand, nine hundred twenty-eight".