2000646 has 16 divisors (see below), whose sum is σ = 4446000. Its totient is φ = 666864.

The previous prime is 2000639. The next prime is 2000653. The reversal of 2000646 is 6460002.

2000646 is a `hidden beast` number, since 20 + 0 + 0 + 646 = 666.

It is an interprime number because it is at equal distance from previous prime (2000639) and next prime (2000653).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18471 + ... + 18578.

It is an arithmetic number, because the mean of its divisors is an integer number (277875).

2^2000646 is an apocalyptic number.

2000646 is an abundant number, since it is smaller than the sum of its proper divisors (2445354).

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

2000646 is a wasteful number, since it uses less digits than its factorization.

2000646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37060 (or 37054 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2000646 is about 1414.4419394235. The cubic root of 2000646 is about 126.0056686792.

Adding to 2000646 its reverse (6460002), we get a palindrome (8460648).

The spelling of 2000646 in words is "two million, six hundred forty-six", and thus it is an aban number.