2821752840 has 64 divisors (see below), whose sum is σ = 8671743360. Its totient is φ = 734113280.

The previous prime is 2821752839. The next prime is 2821752851. The reversal of 2821752840 is 482571282.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281844 + ... + 291683.

It is an arithmetic number, because the mean of its divisors is an integer number (135495990).

Almost surely, 2^2821752840 is an apocalyptic number.

2821752840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2821752840 is an abundant number, since it is smaller than the sum of its proper divisors (5849990520).

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

2821752840 is a wasteful number, since it uses less digits than its factorization.

2821752840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573582 (or 573578 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2821752840 is about 53120.1735689935. The cubic root of 2821752840 is about 1413.1003054656.

The spelling of 2821752840 in words is "two billion, eight hundred twenty-one million, seven hundred fifty-two thousand, eight hundred forty".