64500448 has 48 divisors (see below), whose sum is σ = 135581040. Its totient is φ = 30099456.

The previous prime is 64500409. The next prime is 64500463. The reversal of 64500448 is 84400546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75190 + ... + 76042.

It is an arithmetic number, because the mean of its divisors is an integer number (2824605).

Almost surely, 2^64500448 is an apocalyptic number.

64500448 is a gapful number since it is divisible by the number (68) 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 64500448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67790520).

64500448 is an abundant number, since it is smaller than the sum of its proper divisors (71080592).

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

64500448 is a wasteful number, since it uses less digits than its factorization.

64500448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 64500448 is about 8031.2170933178. The cubic root of 64500448 is about 401.0398942073.

The spelling of 64500448 in words is "sixty-four million, five hundred thousand, four hundred forty-eight".