64370730 has 64 divisors (see below), whose sum is σ = 160247808. Its totient is φ = 16537920.

The previous prime is 64370693. The next prime is 64370731. The reversal of 64370730 is 3707346.

64370730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (64370731) 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, 99789 + ... + 100431.

It is an arithmetic number, because the mean of its divisors is an integer number (2503872).

Almost surely, 2^64370730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64370730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80123904).

64370730 is an abundant number, since it is smaller than the sum of its proper divisors (95877078).

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

64370730 is a wasteful number, since it uses less digits than its factorization.

64370730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 64370730 is about 8023.1371669690. The cubic root of 64370730 is about 400.7708676201.

The spelling of 64370730 in words is "sixty-four million, three hundred seventy thousand, seven hundred thirty".