64305332 has 48 divisors (see below), whose sum is σ = 144544512. Its totient is φ = 24330240.

The previous prime is 64305301. The next prime is 64305337. The reversal of 64305332 is 23350346.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64305337) 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, 4532 + ... + 12212.

It is an arithmetic number, because the mean of its divisors is an integer number (3011344).

Almost surely, 2^64305332 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 64305332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72272256).

64305332 is an abundant number, since it is smaller than the sum of its proper divisors (80239180).

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

64305332 is a wasteful number, since it uses less digits than its factorization.

64305332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728 (or 7726 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 64305332 is about 8019.0605434801. The cubic root of 64305332 is about 400.6350994215.

Adding to 64305332 its reverse (23350346), we get a palindrome (87655678).

The spelling of 64305332 in words is "sixty-four million, three hundred five thousand, three hundred thirty-two".