64425760 has 192 divisors, whose sum is σ = 188987904. Its totient is φ = 20275200.

The previous prime is 64425743. The next prime is 64425763. The reversal of 64425760 is 6752446.

64425760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64425763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1056130 + ... + 1056190.

It is an arithmetic number, because the mean of its divisors is an integer number (984312).

Almost surely, 2^64425760 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 64425760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94493952).

64425760 is an abundant number, since it is smaller than the sum of its proper divisors (124562144).

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

64425760 is a wasteful number, since it uses less digits than its factorization.

64425760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 64425760 is about 8026.5658908402. The cubic root of 64425760 is about 400.8850403148.

The spelling of 64425760 in words is "sixty-four million, four hundred twenty-five thousand, seven hundred sixty".