65338812 has 192 divisors, whose sum is σ = 216007680. Its totient is φ = 16796160.

The previous prime is 65338811. The next prime is 65338831. The reversal of 65338812 is 21883356.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (34560) is a multiple of the sum of its prime divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65338811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 673548 + ... + 673644.

It is an arithmetic number, because the mean of its divisors is an integer number (1125040).

Almost surely, 2^65338812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65338812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108003840).

65338812 is an abundant number, since it is smaller than the sum of its proper divisors (150668868).

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

65338812 is a wasteful number, since it uses less digits than its factorization.

65338812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 120 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 65338812 is about 8083.2426661582. The cubic root of 65338812 is about 402.7699656155.

The spelling of 65338812 in words is "sixty-five million, three hundred thirty-eight thousand, eight hundred twelve".