64344064 has 52 divisors (see below), whose sum is σ = 134463456. Its totient is φ = 30728192.

The previous prime is 64344061. The next prime is 64344079. The reversal of 64344064 is 46044346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64344061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93867 + ... + 94549.

Almost surely, 2^64344064 is an apocalyptic number.

64344064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64344064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67231728).

64344064 is an abundant number, since it is smaller than the sum of its proper divisors (70119392).

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

64344064 is an equidigital number, since it uses as much as digits as its factorization.

64344064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 64344064 is about 8021.4751760508. The cubic root of 64344064 is about 400.7155193171.

The spelling of 64344064 in words is "sixty-four million, three hundred forty-four thousand, sixty-four".