2042556 has 12 divisors (see below), whose sum is σ = 4765992. Its totient is φ = 680848.

The previous prime is 2042549. The next prime is 2042581. The reversal of 2042556 is 6552402.

It is a tau number, because it is divible by the number of its divisors (12).

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, 85095 + ... + 85118.

It is an arithmetic number, because the mean of its divisors is an integer number (397166).

2^2042556 is an apocalyptic number.

It is an amenable number.

2042556 is an abundant number, since it is smaller than the sum of its proper divisors (2723436).

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

2042556 is a wasteful number, since it uses less digits than its factorization.

2042556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170220 (or 170218 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2042556 is about 1429.1801845814. The cubic root of 2042556 is about 126.8794607215.

Adding to 2042556 its reverse (6552402), we get a palindrome (8594958).

The spelling of 2042556 in words is "two million, forty-two thousand, five hundred fifty-six".