653944268 has 12 divisors (see below), whose sum is σ = 1144591392. Its totient is φ = 326918160.

The previous prime is 653944267. The next prime is 653944283. The reversal of 653944268 is 862449356.

It is not an unprimeable number, because it can be changed into a prime (653944267) 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 3 ways as a sum of consecutive naturals, for example, 27821 + ... + 45627.

It is an arithmetic number, because the mean of its divisors is an integer number (95382616).

Almost surely, 2^653944268 is an apocalyptic number.

It is an amenable number.

653944268 is a deficient number, since it is larger than the sum of its proper divisors (490647124).

653944268 is a wasteful number, since it uses less digits than its factorization.

653944268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26992 (or 26990 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 47.

The square root of 653944268 is about 25572.3340350465. The cubic root of 653944268 is about 867.9877163488.

The spelling of 653944268 in words is "six hundred fifty-three million, nine hundred forty-four thousand, two hundred sixty-eight".