65006340 has 72 divisors (see below), whose sum is σ = 211744512. Its totient is φ = 14857920.

The previous prime is 65006339. The next prime is 65006341. The reversal of 65006340 is 4360056.

It is an interprime number because it is at equal distance from previous prime (65006339) and next prime (65006341).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65006340.

It is not an unprimeable number, because it can be changed into a prime (65006341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8116 + ... + 13995.

It is an arithmetic number, because the mean of its divisors is an integer number (2940896).

Almost surely, 2^65006340 is an apocalyptic number.

65006340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65006340 is an abundant number, since it is smaller than the sum of its proper divisors (146738172).

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

65006340 is a wasteful number, since it uses less digits than its factorization.

65006340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137 (or 22128 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65006340 is about 8062.6509288199. The cubic root of 65006340 is about 402.0856479474.

Adding to 65006340 its reverse (4360056), we get a palindrome (69366396).

The spelling of 65006340 in words is "sixty-five million, six thousand, three hundred forty".