2820522 has 8 divisors (see below), whose sum is σ = 5641056. Its totient is φ = 940172.

The previous prime is 2820509. The next prime is 2820527. The reversal of 2820522 is 2250282.

It is a sphenic number, since it is the product of 3 distinct primes.

2820522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2820527) 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, 235038 + ... + 235049.

It is an arithmetic number, because the mean of its divisors is an integer number (705132).

2^2820522 is an apocalyptic number.

2820522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2820522 is a wasteful number, since it uses less digits than its factorization.

2820522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470092.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2820522 is about 1679.4409784211. The cubic root of 2820522 is about 141.2894812234.

The spelling of 2820522 in words is "two million, eight hundred twenty thousand, five hundred twenty-two".