64389052 has 48 divisors (see below), whose sum is σ = 144732672. Its totient is φ = 24361920.

The previous prime is 64389023. The next prime is 64389053. The reversal of 64389052 is 25098346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64389053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4527 + ... + 12217.

It is an arithmetic number, because the mean of its divisors is an integer number (3015264).

Almost surely, 2^64389052 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 64389052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72366336).

64389052 is an abundant number, since it is smaller than the sum of its proper divisors (80343620).

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

64389052 is a wasteful number, since it uses less digits than its factorization.

64389052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738 (or 7736 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64389052 is about 8024.2789084129. The cubic root of 64389052 is about 400.8088881473.

The spelling of 64389052 in words is "sixty-four million, three hundred eighty-nine thousand, fifty-two".