64384512 has 80 divisors (see below), whose sum is σ = 173238912. Its totient is φ = 21248000.

The previous prime is 64384493. The next prime is 64384519. The reversal of 64384512 is 21548346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64384519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256387 + ... + 256637.

Almost surely, 2^64384512 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 64384512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86619456).

64384512 is an abundant number, since it is smaller than the sum of its proper divisors (108854400).

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

64384512 is a wasteful number, since it uses less digits than its factorization.

64384512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 423 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 64384512 is about 8023.9960119631. The cubic root of 64384512 is about 400.7994677305.

The spelling of 64384512 in words is "sixty-four million, three hundred eighty-four thousand, five hundred twelve".