64328532 has 12 divisors (see below), whose sum is σ = 150099936. Its totient is φ = 21442840.

The previous prime is 64328519. The next prime is 64328543. The reversal of 64328532 is 23582346.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 64328493 and 64328502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2680344 + ... + 2680367.

It is an arithmetic number, because the mean of its divisors is an integer number (12508328).

Almost surely, 2^64328532 is an apocalyptic number.

It is an amenable number.

64328532 is an abundant number, since it is smaller than the sum of its proper divisors (85771404).

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

64328532 is a wasteful number, since it uses less digits than its factorization.

64328532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360718 (or 5360716 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 64328532 is about 8020.5069665203. The cubic root of 64328532 is about 400.6832738442.

The spelling of 64328532 in words is "sixty-four million, three hundred twenty-eight thousand, five hundred thirty-two".