2821360 has 20 divisors (see below), whose sum is σ = 6559848. Its totient is φ = 1128512.

The previous prime is 2821331. The next prime is 2821369. The reversal of 2821360 is 631282.

2821360 = 45² + 46² + ... + 204².

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821369) 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, 17554 + ... + 17713.

2^2821360 is an apocalyptic number.

2821360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2821360 is an abundant number, since it is smaller than the sum of its proper divisors (3738488).

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

2821360 is a wasteful number, since it uses less digits than its factorization.

2821360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35280 (or 35274 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2821360 is about 1679.6904476718. The cubic root of 2821360 is about 141.3034725887.

The spelling of 2821360 in words is "two million, eight hundred twenty-one thousand, three hundred sixty".