2656043 has 4 divisors (see below), whose sum is σ = 2860368. Its totient is φ = 2451720.

The previous prime is 2656033. The next prime is 2656051. The reversal of 2656043 is 3406562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2656043 - 2¹² = 2651947 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102143 + ... + 102168.

It is an arithmetic number, because the mean of its divisors is an integer number (715092).

2^2656043 is an apocalyptic number.

2656043 is a deficient number, since it is larger than the sum of its proper divisors (204325).

2656043 is a wasteful number, since it uses less digits than its factorization.

2656043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204324.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2656043 is about 1629.7370953623. The cubic root of 2656043 is about 138.4878588062.

The spelling of 2656043 in words is "two million, six hundred fifty-six thousand, forty-three".