65043420 has 48 divisors (see below), whose sum is σ = 196133280. Its totient is φ = 16010496.

The previous prime is 65043413. The next prime is 65043421. The reversal of 65043420 is 2434056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65043421) 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, 40915 + ... + 42474.

It is an arithmetic number, because the mean of its divisors is an integer number (4086110).

Almost surely, 2^65043420 is an apocalyptic number.

65043420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65043420 is an abundant number, since it is smaller than the sum of its proper divisors (131089860).

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

65043420 is a wasteful number, since it uses less digits than its factorization.

65043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83414 (or 83412 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 65043420 is about 8064.9500928400. The cubic root of 65043420 is about 402.1620840916.

Adding to 65043420 its reverse (2434056), we get a palindrome (67477476).

The spelling of 65043420 in words is "sixty-five million, forty-three thousand, four hundred twenty".