2940656 has 20 divisors (see below), whose sum is σ = 5728800. Its totient is φ = 1462272.

The previous prime is 2940631. The next prime is 2940667. The reversal of 2940656 is 6560492.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3440 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (286440).

2^2940656 is an apocalyptic number.

It is an amenable number.

2940656 is a deficient number, since it is larger than the sum of its proper divisors (2788144).

2940656 is a wasteful number, since it uses less digits than its factorization.

2940656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2940656 is about 1714.8341027633. The cubic root of 2940656 is about 143.2676292813.

The spelling of 2940656 in words is "two million, nine hundred forty thousand, six hundred fifty-six".