2840279 has 8 divisors (see below), whose sum is σ = 3130512. Its totient is φ = 2560320.

The previous prime is 2840273. The next prime is 2840281. The reversal of 2840279 is 9720482.

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 2840279 - 2⁴ = 2840263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1982 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (391314).

2^2840279 is an apocalyptic number.

2840279 is a deficient number, since it is larger than the sum of its proper divisors (290233).

2840279 is a wasteful number, since it uses less digits than its factorization.

2840279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2840279 is about 1685.3127306230. The cubic root of 2840279 is about 141.6186122289.

The spelling of 2840279 in words is "two million, eight hundred forty thousand, two hundred seventy-nine".