65460140 has 24 divisors (see below), whose sum is σ = 137773440. Its totient is φ = 26125568.

The previous prime is 65460133. The next prime is 65460151. The reversal of 65460140 is 4106456.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6164 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (5740560).

Almost surely, 2^65460140 is an apocalyptic number.

It is an amenable number.

65460140 is an abundant number, since it is smaller than the sum of its proper divisors (72313300).

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

65460140 is a wasteful number, since it uses less digits than its factorization.

65460140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321 (or 7319 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 65460140 is about 8090.7440943340. The cubic root of 65460140 is about 403.0191133872.

Adding to 65460140 its reverse (4106456), we get a palindrome (69566596).

The spelling of 65460140 in words is "sixty-five million, four hundred sixty thousand, one hundred forty".