1016556 has 12 divisors (see below), whose sum is σ = 2371992. Its totient is φ = 338848.

The previous prime is 1016527. The next prime is 1016567. The reversal of 1016556 is 6556101.

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

It is a super-2 number, since 2×1016556² = 2066772202272, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 42345 + ... + 42368.

It is an arithmetic number, because the mean of its divisors is an integer number (197666).

2^1016556 is an apocalyptic number.

It is an amenable number.

1016556 is an abundant number, since it is smaller than the sum of its proper divisors (1355436).

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

1016556 is a wasteful number, since it uses less digits than its factorization.

1016556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84720 (or 84718 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1016556 is about 1008.2440180829. The cubic root of 1016556 is about 100.5488488055.

The spelling of 1016556 in words is "one million, sixteen thousand, five hundred fifty-six".