4065572 has 48 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1623072.

The previous prime is 4065571. The next prime is 4065583. The reversal of 4065572 is 2755604.

It is not an unprimeable number, because it can be changed into a prime (4065571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37943 + ... + 38049.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 2^4065572 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 4065572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354560).

4065572 is an abundant number, since it is smaller than the sum of its proper divisors (4643548).

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

4065572 is a wasteful number, since it uses less digits than its factorization.

4065572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 4065572 is about 2016.3263624721. The cubic root of 4065572 is about 159.6028169343.

The spelling of 4065572 in words is "four million, sixty-five thousand, five hundred seventy-two".