2819980800 has 720 divisors, whose sum is σ = 12467014560. Its totient is φ = 592773120.

The previous prime is 2819980783. The next prime is 2819980831. The reversal of 2819980800 is 80899182.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10483066 + ... + 10483334.

It is an arithmetic number, because the mean of its divisors is an integer number (17315298).

Almost surely, 2^2819980800 is an apocalyptic number.

2819980800 is a gapful number since it is divisible by the number (20) 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 2819980800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6233507280).

2819980800 is an abundant number, since it is smaller than the sum of its proper divisors (9647033760).

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

2819980800 is a wasteful number, since it uses less digits than its factorization.

2819980800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 2819980800 is about 53103.4914106408. The cubic root of 2819980800 is about 1412.8044379949.

The spelling of 2819980800 in words is "two billion, eight hundred nineteen million, nine hundred eighty thousand, eight hundred".