652189444 has 15 divisors (see below), whose sum is σ = 1151521987. Its totient is φ = 323208928.

The previous prime is 652189441. The next prime is 652189453. The reversal of 652189444 is 444981256.

The square root of 652189444 is 25538.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 607031044 + 45158400 = 24638^2 + 6720^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=4, B=113.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 652189444.

It is not an unprimeable number, because it can be changed into a prime (652189441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 5771532 + ... + 5771644.

Almost surely, 2^652189444 is an apocalyptic number.

652189444 is the 25538-th square number.

It is an amenable number.

652189444 is a deficient number, since it is larger than the sum of its proper divisors (499332543).

652189444 is an frugal number, since it uses more digits than its factorization.

652189444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 115 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The cubic root of 652189444 is about 867.2106215055.

It can be divided in two parts, 652 and 189444, that added together give a square (190096 = 436²).

The spelling of 652189444 in words is "six hundred fifty-two million, one hundred eighty-nine thousand, four hundred forty-four".