2803220784 has 560 divisors, whose sum is σ = 10625708800. Its totient is φ = 695361024.

The previous prime is 2803220773. The next prime is 2803220821. The reversal of 2803220784 is 4870223082.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 20166987 + ... + 20167125.

It is an arithmetic number, because the mean of its divisors is an integer number (18974480).

Almost surely, 2^2803220784 is an apocalyptic number.

2803220784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2803220784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5312854400).

2803220784 is an abundant number, since it is smaller than the sum of its proper divisors (7822488016).

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

2803220784 is a wasteful number, since it uses less digits than its factorization.

2803220784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2803220784 is about 52945.4510227272. The cubic root of 2803220784 is about 1409.9999637845. Note that the first 4 decimals are identical.

The spelling of 2803220784 in words is "two billion, eight hundred three million, two hundred twenty thousand, seven hundred eighty-four".