65434220 has 12 divisors (see below), whose sum is σ = 137411904. Its totient is φ = 26173680.

The previous prime is 65434219. The next prime is 65434223. The reversal of 65434220 is 2243456.

It is a self number, because there is not a number n which added to its sum of digits gives 65434220.

It is not an unprimeable number, because it can be changed into a prime (65434223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635836 + ... + 1635875.

It is an arithmetic number, because the mean of its divisors is an integer number (11450992).

Almost surely, 2^65434220 is an apocalyptic number.

It is an amenable number.

65434220 is an abundant number, since it is smaller than the sum of its proper divisors (71977684).

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

65434220 is a wasteful number, since it uses less digits than its factorization.

65434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271720 (or 3271718 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 65434220 is about 8089.1421053162. The cubic root of 65434220 is about 402.9659123883.

Adding to 65434220 its reverse (2243456), we get a palindrome (67677676).

The spelling of 65434220 in words is "sixty-five million, four hundred thirty-four thousand, two hundred twenty".