2000556 has 36 divisors (see below), whose sum is σ = 5145504. Its totient is φ = 655200.

The previous prime is 2000539. The next prime is 2000573. The reversal of 2000556 is 6550002.

It is an interprime number because it is at equal distance from previous prime (2000539) and next prime (2000573).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1741 + ... + 2651.

2^2000556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2000556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572752).

2000556 is an abundant number, since it is smaller than the sum of its proper divisors (3144948).

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

2000556 is a wasteful number, since it uses less digits than its factorization.

2000556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2000556 is about 1414.4101243982. The cubic root of 2000556 is about 126.0037791761.

Adding to 2000556 its reverse (6550002), we get a palindrome (8550558).

It can be divided in two parts, 2000 and 556, that added together give a triangular number (2556 = T₇₁).

The spelling of 2000556 in words is "two million, five hundred fifty-six", and thus it is an aban number.