2839772820 has 48 divisors (see below), whose sum is σ = 8419094208. Its totient is φ = 712727040.

The previous prime is 2839772801. The next prime is 2839772827. The reversal of 2839772820 is 282779382.

2839772820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2839772820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2839772827) 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, 1391026 + ... + 1393065.

It is an arithmetic number, because the mean of its divisors is an integer number (175397796).

Almost surely, 2^2839772820 is an apocalyptic number.

2839772820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2839772820 is an abundant number, since it is smaller than the sum of its proper divisors (5579321388).

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

2839772820 is a wasteful number, since it uses less digits than its factorization.

2839772820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784120 (or 2784118 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 2839772820 is about 53289.5188569009. The cubic root of 2839772820 is about 1416.1019888077.

The spelling of 2839772820 in words is "two billion, eight hundred thirty-nine million, seven hundred seventy-two thousand, eight hundred twenty".