2840493 has 8 divisors (see below), whose sum is σ = 3796128. Its totient is φ = 1889264.

The previous prime is 2840483. The next prime is 2840507. The reversal of 2840493 is 3940482.

It is a happy number.

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 2840493 - 2⁸ = 2840237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2840493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840483) 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, 955 + ... + 2567.

It is an arithmetic number, because the mean of its divisors is an integer number (474516).

2^2840493 is an apocalyptic number.

It is an amenable number.

2840493 is a deficient number, since it is larger than the sum of its proper divisors (955635).

2840493 is a wasteful number, since it uses less digits than its factorization.

2840493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2840493 is about 1685.3762191273. The cubic root of 2840493 is about 141.6221688774.

It can be divided in two parts, 2840 and 493, that added together give a palindrome (3333).

The spelling of 2840493 in words is "two million, eight hundred forty thousand, four hundred ninety-three".