4056628 has 6 divisors (see below), whose sum is σ = 7099106. Its totient is φ = 2028312.

The previous prime is 4056623. The next prime is 4056641. The reversal of 4056628 is 8266504.

It can be written as a sum of positive squares in only one way, i.e., 2683044 + 1373584 = 1638^2 + 1172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4056628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4056623) 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 as a sum of consecutive naturals, namely, 507075 + ... + 507082.

Almost surely, 2^4056628 is an apocalyptic number.

It is an amenable number.

4056628 is a deficient number, since it is larger than the sum of its proper divisors (3042478).

4056628 is a wasteful number, since it uses less digits than its factorization.

4056628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014161 (or 1014159 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 4056628 is about 2014.1072463998. The cubic root of 4056628 is about 159.4856923189.

The spelling of 4056628 in words is "four million, fifty-six thousand, six hundred twenty-eight".