4056644 has 6 divisors (see below), whose sum is σ = 7099134. Its totient is φ = 2028320.

The previous prime is 4056641. The next prime is 4056697. The reversal of 4056644 is 4466504.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 56644 = 2000^2 + 238^2 .

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507077 + ... + 507084.

It is an arithmetic number, because the mean of its divisors is an integer number (1183189).

Almost surely, 2^4056644 is an apocalyptic number.

It is an amenable number.

4056644 is a deficient number, since it is larger than the sum of its proper divisors (3042490).

4056644 is a wasteful number, since it uses less digits than its factorization.

4056644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014165 (or 1014163 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 4056644 is about 2014.1112183790. Note that the first 3 decimals coincide. The cubic root of 4056644 is about 159.4859019978.

The spelling of 4056644 in words is "four million, fifty-six thousand, six hundred forty-four".