653442320 has 40 divisors (see below), whose sum is σ = 1521735936. Its totient is φ = 260949888.

The previous prime is 653442301. The next prime is 653442337. The reversal of 653442320 is 23244356.

653442320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45089 + ... + 57791.

Almost surely, 2^653442320 is an apocalyptic number.

It is an amenable number.

653442320 is an abundant number, since it is smaller than the sum of its proper divisors (868293616).

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

653442320 is a wasteful number, since it uses less digits than its factorization.

653442320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359 (or 13353 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 653442320 is about 25562.5178728544. The cubic root of 653442320 is about 867.7655790608.

Adding to 653442320 its reverse (23244356), we get a palindrome (676686676).

The spelling of 653442320 in words is "six hundred fifty-three million, four hundred forty-two thousand, three hundred twenty".