4056646 has 12 divisors (see below), whose sum is σ = 6688836. Its totient is φ = 1843820.

The previous prime is 4056641. The next prime is 4056697. The reversal of 4056646 is 6466504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4056641) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8140 + ... + 8623.

It is an arithmetic number, because the mean of its divisors is an integer number (557403).

Almost surely, 2^4056646 is an apocalyptic number.

4056646 is a deficient number, since it is larger than the sum of its proper divisors (2632190).

4056646 is a wasteful number, since it uses less digits than its factorization.

4056646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16787 (or 16776 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 4056646 is about 2014.1117148758. Note that the first 3 decimals coincide. The cubic root of 4056646 is about 159.4859282076.

The spelling of 4056646 in words is "four million, fifty-six thousand, six hundred forty-six".