4056556 has 24 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 1662672.

The previous prime is 4056553. The next prime is 4056583. The reversal of 4056556 is 6556504.

It is a super-2 number, since 2×4056556² = 32911293162272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4056553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506 + ... + 3793.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

Almost surely, 2^4056556 is an apocalyptic number.

4056556 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

4056556 is an abundant number, since it is smaller than the sum of its proper divisors (4410644).

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

4056556 is a wasteful number, since it uses less digits than its factorization.

4056556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333 (or 6331 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 4056556 is about 2014.0893723964. The cubic root of 4056556 is about 159.4847487571.

The spelling of 4056556 in words is "four million, fifty-six thousand, five hundred fifty-six".