65360440 has 16 divisors (see below), whose sum is σ = 147061080. Its totient is φ = 26144160.

The previous prime is 65360429. The next prime is 65360453. The reversal of 65360440 is 4406356.

65360440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65360399 and 65360408.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 816966 + ... + 817045.

Almost surely, 2^65360440 is an apocalyptic number.

It is an amenable number.

65360440 is an abundant number, since it is smaller than the sum of its proper divisors (81700640).

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

65360440 is a wasteful number, since it uses less digits than its factorization.

65360440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634022 (or 1634018 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 65360440 is about 8084.5803849056. The cubic root of 65360440 is about 402.8144014190.

Adding to 65360440 its reverse (4406356), we get a palindrome (69766796).

The spelling of 65360440 in words is "sixty-five million, three hundred sixty thousand, four hundred forty".