65018740 has 24 divisors (see below), whose sum is σ = 136739232. Its totient is φ = 25969440.

The previous prime is 65018729. The next prime is 65018753. The reversal of 65018740 is 4781056.

65018740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 14575 + ... + 18505.

It is an arithmetic number, because the mean of its divisors is an integer number (5697468).

Almost surely, 2^65018740 is an apocalyptic number.

It is an amenable number.

65018740 is an abundant number, since it is smaller than the sum of its proper divisors (71720492).

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

65018740 is a wasteful number, since it uses less digits than its factorization.

65018740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 65018740 is about 8063.4198700055. The cubic root of 65018740 is about 402.1112123516. Note that the first 3 decimals are identical.

Adding to 65018740 its reverse (4781056), we get a palindrome (69799796).

The spelling of 65018740 in words is "sixty-five million, eighteen thousand, seven hundred forty".