64322432 has 32 divisors (see below), whose sum is σ = 129784800. Its totient is φ = 31749120.

The previous prime is 64322431. The next prime is 64322437. The reversal of 64322432 is 23422346.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64322431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6932 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (4055775).

Almost surely, 2^64322432 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 64322432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64892400).

64322432 is an abundant number, since it is smaller than the sum of its proper divisors (65462368).

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

64322432 is an equidigital number, since it uses as much as digits as its factorization.

64322432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454 (or 6442 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

The square root of 64322432 is about 8020.1266822912. The cubic root of 64322432 is about 400.6706084159.

Adding to 64322432 its reverse (23422346), we get a palindrome (87744778).

The spelling of 64322432 in words is "sixty-four million, three hundred twenty-two thousand, four hundred thirty-two".