65234540 has 48 divisors (see below), whose sum is σ = 161624064. Its totient is φ = 21643200.

The previous prime is 65234539. The next prime is 65234549. The reversal of 65234540 is 4543256.

It is not an unprimeable number, because it can be changed into a prime (65234549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3176 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (3367168).

Almost surely, 2^65234540 is an apocalyptic number.

It is an amenable number.

65234540 is an abundant number, since it is smaller than the sum of its proper divisors (96389524).

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

65234540 is a wasteful number, since it uses less digits than its factorization.

65234540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15078 (or 15076 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 65234540 is about 8076.7902040353. The cubic root of 65234540 is about 402.5555958851. Note that the first 4 decimals are identical.

Adding to 65234540 its reverse (4543256), we get a palindrome (69777796).

The spelling of 65234540 in words is "sixty-five million, two hundred thirty-four thousand, five hundred forty".