2780282 has 8 divisors (see below), whose sum is σ = 4415796. Its totient is φ = 1308352.

The previous prime is 2780273. The next prime is 2780303. The reversal of 2780282 is 2820872.

It can be written as a sum of positive squares in 2 ways, for example, as 2531281 + 249001 = 1591^2 + 499^2 .

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, 40853 + ... + 40920.

2^2780282 is an apocalyptic number.

2780282 is a deficient number, since it is larger than the sum of its proper divisors (1635514).

2780282 is a wasteful number, since it uses less digits than its factorization.

2780282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81792.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 2780282 is about 1667.4177640891. The cubic root of 2780282 is about 140.6143410522.

The spelling of 2780282 in words is "two million, seven hundred eighty thousand, two hundred eighty-two".