64344100 has 36 divisors (see below), whose sum is σ = 141004864. Its totient is φ = 25483680.

The previous prime is 64344079. The next prime is 64344107. The reversal of 64344100 is 144346.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64344107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7177 + ... + 13423.

Almost surely, 2^64344100 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 64344100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70502432).

64344100 is an abundant number, since it is smaller than the sum of its proper divisors (76660764).

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

64344100 is a wasteful number, since it uses less digits than its factorization.

64344100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364 (or 6357 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 64344100 is about 8021.4774200268. The cubic root of 64344100 is about 400.7155940495.

Adding to 64344100 its reverse (144346), we get a palindrome (64488446).

The spelling of 64344100 in words is "sixty-four million, three hundred forty-four thousand, one hundred".