2820242 has 8 divisors (see below), whose sum is σ = 4237500. Its totient is φ = 1407744.

The previous prime is 2820239. The next prime is 2820263. The reversal of 2820242 is 2420282.

It can be written as a sum of positive squares in 2 ways, for example, as 2588881 + 231361 = 1609^2 + 481^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634 + ... + 2882.

2^2820242 is an apocalyptic number.

2820242 is a deficient number, since it is larger than the sum of its proper divisors (1417258).

2820242 is a wasteful number, since it uses less digits than its factorization.

2820242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2820242 is about 1679.3576152803. The cubic root of 2820242 is about 141.2848056865.

The spelling of 2820242 in words is "two million, eight hundred twenty thousand, two hundred forty-two".