2000656 has 20 divisors (see below), whose sum is σ = 4430272. Its totient is φ = 857376.

The previous prime is 2000653. The next prime is 2000659. The reversal of 2000656 is 6560002.

It is an interprime number because it is at equal distance from previous prime (2000653) and next prime (2000659).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000653) 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, 8820 + ... + 9043.

2^2000656 is an apocalyptic number.

It is an amenable number.

2000656 is an abundant number, since it is smaller than the sum of its proper divisors (2429616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2000656 is a wasteful number, since it uses less digits than its factorization.

2000656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17878 (or 17872 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2000656 is about 1414.4454743821. The cubic root of 2000656 is about 126.0058786205.

Adding to 2000656 its reverse (6560002), we get a palindrome (8560658).

The spelling of 2000656 in words is "two million, six hundred fifty-six", and thus it is an aban number.