2812822380 has 72 divisors (see below), whose sum is σ = 9034133472. Its totient is φ = 705962496.

The previous prime is 2812822373. The next prime is 2812822391. The reversal of 2812822380 is 832282182.

2812822380 is a `hidden beast` number, since 281 + 282 + 23 + 80 = 666.

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

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, 456552 + ... + 462671.

It is an arithmetic number, because the mean of its divisors is an integer number (125474076).

Almost surely, 2^2812822380 is an apocalyptic number.

2812822380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2812822380 is an abundant number, since it is smaller than the sum of its proper divisors (6221311092).

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

2812822380 is a wasteful number, since it uses less digits than its factorization.

2812822380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919255 (or 919250 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 2812822380 is about 53036.0479296865. The cubic root of 2812822380 is about 1411.6079739179.

The spelling of 2812822380 in words is "two billion, eight hundred twelve million, eight hundred twenty-two thousand, three hundred eighty".