65106240 has 56 divisors (see below), whose sum is σ = 206715360. Its totient is φ = 17361408.

The previous prime is 65106227. The next prime is 65106253. The reversal of 65106240 is 4260156.

It is an interprime number because it is at equal distance from previous prime (65106227) and next prime (65106253).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 65106240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32950 + ... + 34869.

Almost surely, 2^65106240 is an apocalyptic number.

65106240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65106240 is an abundant number, since it is smaller than the sum of its proper divisors (141609120).

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

65106240 is a wasteful number, since it uses less digits than its factorization.

65106240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67839 (or 67829 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 65106240 is about 8068.8437833434. The cubic root of 65106240 is about 402.2915140072.

Adding to 65106240 its reverse (4260156), we get a palindrome (69366396).

The spelling of 65106240 in words is "sixty-five million, one hundred six thousand, two hundred forty".