653456642 has 8 divisors (see below), whose sum is σ = 1037842956. Its totient is φ = 307508992.

The previous prime is 653456627. The next prime is 653456669. The reversal of 653456642 is 246654356.

It is a happy number.

653456642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 620059801 + 33396841 = 24901^2 + 5779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 653456642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9609623 + ... + 9609690.

Almost surely, 2^653456642 is an apocalyptic number.

653456642 is a deficient number, since it is larger than the sum of its proper divisors (384386314).

653456642 is a wasteful number, since it uses less digits than its factorization.

653456642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19219332.

The product of its digits is 518400, while the sum is 41.

The square root of 653456642 is about 25562.7980080429. The cubic root of 653456642 is about 867.7719188439.

The spelling of 653456642 in words is "six hundred fifty-three million, four hundred fifty-six thousand, six hundred forty-two".