65424320 has 56 divisors (see below), whose sum is σ = 167786304. Its totient is φ = 24155136.

The previous prime is 65424311. The next prime is 65424323. The reversal of 65424320 is 2342456.

65424320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 65424320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65424323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704 + ... + 12023.

It is an arithmetic number, because the mean of its divisors is an integer number (2996184).

Almost surely, 2^65424320 is an apocalyptic number.

It is an amenable number.

65424320 is an abundant number, since it is smaller than the sum of its proper divisors (102361984).

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

65424320 is a wasteful number, since it uses less digits than its factorization.

65424320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15757 (or 15747 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 65424320 is about 8088.5301507752. The cubic root of 65424320 is about 402.9455888545.

Adding to 65424320 its reverse (2342456), we get a palindrome (67766776).

The spelling of 65424320 in words is "sixty-five million, four hundred twenty-four thousand, three hundred twenty".