3945568 has 36 divisors (see below), whose sum is σ = 8546580. Its totient is φ = 1791680.

The previous prime is 3945527. The next prime is 3945607. The reversal of 3945568 is 8655493.

It is a self number, because there is not a number n which added to its sum of digits gives 3945568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3363 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (237405).

Almost surely, 2^3945568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3945568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4273290).

3945568 is an abundant number, since it is smaller than the sum of its proper divisors (4601012).

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

3945568 is a wasteful number, since it uses less digits than its factorization.

3945568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1032 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 3945568 is about 1986.3453878920. The cubic root of 3945568 is about 158.0167690368.

The spelling of 3945568 in words is "three million, nine hundred forty-five thousand, five hundred sixty-eight".