2840956 has 24 divisors (see below), whose sum is σ = 5418000. Its totient is φ = 1298304.

The previous prime is 2840951. The next prime is 2840987. The reversal of 2840956 is 6590482.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840951) 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, 1560 + ... + 2848.

It is an arithmetic number, because the mean of its divisors is an integer number (225750).

2^2840956 is an apocalyptic number.

It is an amenable number.

2840956 is a deficient number, since it is larger than the sum of its proper divisors (2577044).

2840956 is a wasteful number, since it uses less digits than its factorization.

2840956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2840956 is about 1685.5135715858. The cubic root of 2840956 is about 141.6298632579.

The spelling of 2840956 in words is "two million, eight hundred forty thousand, nine hundred fifty-six".