64729360 has 80 divisors (see below), whose sum is σ = 158846976. Its totient is φ = 24482304.

The previous prime is 64729331. The next prime is 64729393. The reversal of 64729360 is 6392746.

64729360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 233542 + ... + 233818.

Almost surely, 2^64729360 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 64729360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79423488).

64729360 is an abundant number, since it is smaller than the sum of its proper divisors (94117616).

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

64729360 is a wasteful number, since it uses less digits than its factorization.

64729360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 64729360 is about 8045.4558602978. The cubic root of 64729360 is about 401.5137640693.

The spelling of 64729360 in words is "sixty-four million, seven hundred twenty-nine thousand, three hundred sixty".