65303240 has 32 divisors (see below), whose sum is σ = 150353280. Its totient is φ = 25513152.

The previous prime is 65303219. The next prime is 65303269. The reversal of 65303240 is 4230356.

65303240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 17264 + ... + 20703.

It is an arithmetic number, because the mean of its divisors is an integer number (4698540).

Almost surely, 2^65303240 is an apocalyptic number.

It is an amenable number.

65303240 is an abundant number, since it is smaller than the sum of its proper divisors (85050040).

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

65303240 is a wasteful number, since it uses less digits than its factorization.

65303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38021 (or 38017 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 65303240 is about 8081.0420120180. The cubic root of 65303240 is about 402.6968598375.

Adding to 65303240 its reverse (4230356), we get a palindrome (69533596).

The spelling of 65303240 in words is "sixty-five million, three hundred three thousand, two hundred forty".