64345752 has 80 divisors (see below), whose sum is σ = 182080800. Its totient is φ = 21228480.

The previous prime is 64345747. The next prime is 64345753. The reversal of 64345752 is 25754346.

64345752 is a `hidden beast` number, since 643 + 4 + 5 + 7 + 5 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64345753) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70177 + ... + 71087.

It is an arithmetic number, because the mean of its divisors is an integer number (2276010).

Almost surely, 2^64345752 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 64345752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91040400).

64345752 is an abundant number, since it is smaller than the sum of its proper divisors (117735048).

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

64345752 is a wasteful number, since it uses less digits than its factorization.

64345752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1025 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 64345752 is about 8021.5803929151. The cubic root of 64345752 is about 400.7190234056.

The spelling of 64345752 in words is "sixty-four million, three hundred forty-five thousand, seven hundred fifty-two".