653645382 has 32 divisors (see below), whose sum is σ = 1411630080. Its totient is φ = 200581920.

The previous prime is 653645339. The next prime is 653645389. The reversal of 653645382 is 283546356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653645389) 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 15 ways as a sum of consecutive naturals, for example, 18507 + ... + 40617.

It is an arithmetic number, because the mean of its divisors is an integer number (44113440).

Almost surely, 2^653645382 is an apocalyptic number.

653645382 is an abundant number, since it is smaller than the sum of its proper divisors (757984698).

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

653645382 is a wasteful number, since it uses less digits than its factorization.

653645382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22508.

The product of its digits is 518400, while the sum is 42.

The square root of 653645382 is about 25566.4894344139. The cubic root of 653645382 is about 867.8554579268.

The spelling of 653645382 in words is "six hundred fifty-three million, six hundred forty-five thousand, three hundred eighty-two".