4156556 has 6 divisors (see below), whose sum is σ = 7273980. Its totient is φ = 2078276.

The previous prime is 4156549. The next prime is 4156561. The reversal of 4156556 is 6556514.

It is a super-2 number, since 2×4156556² = 34553915562272, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 519566 + ... + 519573.

It is an arithmetic number, because the mean of its divisors is an integer number (1212330).

Almost surely, 2^4156556 is an apocalyptic number.

It is an amenable number.

4156556 is a deficient number, since it is larger than the sum of its proper divisors (3117424).

4156556 is a wasteful number, since it uses less digits than its factorization.

4156556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039143 (or 1039141 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 4156556 is about 2038.7633506614. The cubic root of 4156556 is about 160.7846354634.

The spelling of 4156556 in words is "four million, one hundred fifty-six thousand, five hundred fifty-six".