2808922648 has 96 divisors (see below), whose sum is σ = 6696743040. Its totient is φ = 1096381440.

The previous prime is 2808922637. The next prime is 2808922651. The reversal of 2808922648 is 8462298082.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199786 + ... + 213382.

It is an arithmetic number, because the mean of its divisors is an integer number (69757740).

Almost surely, 2^2808922648 is an apocalyptic number.

2808922648 is a gapful number since it is divisible by the number (28) 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 2808922648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3348371520).

2808922648 is an abundant number, since it is smaller than the sum of its proper divisors (3887820392).

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

2808922648 is a wasteful number, since it uses less digits than its factorization.

2808922648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13665 (or 13654 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 2808922648 is about 52999.2702591272. The cubic root of 2808922648 is about 1410.9553152449.

The spelling of 2808922648 in words is "two billion, eight hundred eight million, nine hundred twenty-two thousand, six hundred forty-eight".