64504448 has 32 divisors (see below), whose sum is σ = 130152000. Its totient is φ = 31838976.

The previous prime is 64504421. The next prime is 64504463. The reversal of 64504448 is 84440546.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6923 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (4067250).

Almost surely, 2^64504448 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 64504448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65076000).

64504448 is an abundant number, since it is smaller than the sum of its proper divisors (65647552).

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

64504448 is an equidigital number, since it uses as much as digits as its factorization.

64504448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472 (or 6460 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 64504448 is about 8031.4661177147. The cubic root of 64504448 is about 401.0481842088.

The spelling of 64504448 in words is "sixty-four million, five hundred four thousand, four hundred forty-eight".