2840258 has 8 divisors (see below), whose sum is σ = 4511052. Its totient is φ = 1336576.

The previous prime is 2840249. The next prime is 2840261. The reversal of 2840258 is 8520482.

2840258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2122849 + 717409 = 1457^2 + 847^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2840258.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41735 + ... + 41802.

2^2840258 is an apocalyptic number.

2840258 is a deficient number, since it is larger than the sum of its proper divisors (1670794).

2840258 is a wasteful number, since it uses less digits than its factorization.

2840258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83556.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2840258 is about 1685.3065003138. The cubic root of 2840258 is about 141.6182632024.

The spelling of 2840258 in words is "two million, eight hundred forty thousand, two hundred fifty-eight".