2840231 has 8 divisors (see below), whose sum is σ = 3018720. Its totient is φ = 2667168.

The previous prime is 2840209. The next prime is 2840237. The reversal of 2840231 is 1320482.

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

It is a cyclic number.

It is not a de Polignac number, because 2840231 - 2¹⁸ = 2578087 is a prime.

It is a super-2 number, since 2×2840231² = 16133824266722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (377340).

2^2840231 is an apocalyptic number.

2840231 is a deficient number, since it is larger than the sum of its proper divisors (178489).

2840231 is a wasteful number, since it uses less digits than its factorization.

2840231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2840231 is about 1685.2984898824. The cubic root of 2840231 is about 141.6178144514.

The spelling of 2840231 in words is "two million, eight hundred forty thousand, two hundred thirty-one".