2821160 has 16 divisors (see below), whose sum is σ = 6347700. Its totient is φ = 1128448.

The previous prime is 2821153. The next prime is 2821163. The reversal of 2821160 is 611282.

It can be written as a sum of positive squares in 2 ways, for example, as 2815684 + 5476 = 1678^2 + 74^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2821163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35225 + ... + 35304.

2^2821160 is an apocalyptic number.

2821160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2821160 is an abundant number, since it is smaller than the sum of its proper divisors (3526540).

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

2821160 is a wasteful number, since it uses less digits than its factorization.

2821160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70540 (or 70536 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2821160 is about 1679.6309118375. The cubic root of 2821160 is about 141.3001336124.

The spelling of 2821160 in words is "two million, eight hundred twenty-one thousand, one hundred sixty".