2821168 has 20 divisors (see below), whose sum is σ = 6247120. Its totient is φ = 1209024.

The previous prime is 2821163. The next prime is 2821183. The reversal of 2821168 is 8611282.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 12483 + ... + 12706.

It is an arithmetic number, because the mean of its divisors is an integer number (312356).

2^2821168 is an apocalyptic number.

2821168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2821168 is an abundant number, since it is smaller than the sum of its proper divisors (3425952).

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

2821168 is a wasteful number, since it uses less digits than its factorization.

2821168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25204 (or 25198 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 2821168 is about 1679.6332933114. The cubic root of 2821168 is about 141.3002671745.

It can be divided in two parts, 28 and 21168, that multiplied together give a cube (592704 = 84³).

The spelling of 2821168 in words is "two million, eight hundred twenty-one thousand, one hundred sixty-eight".