64578448 has 20 divisors (see below), whose sum is σ = 136495728. Its totient is φ = 29353760.

The previous prime is 64578439. The next prime is 64578463. The reversal of 64578448 is 84487546.

64578448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64578398 and 64578407.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 183286 + ... + 183637.

Almost surely, 2^64578448 is an apocalyptic number.

It is an amenable number.

64578448 is an abundant number, since it is smaller than the sum of its proper divisors (71917280).

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

64578448 is a wasteful number, since it uses less digits than its factorization.

64578448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366942 (or 366936 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 64578448 is about 8036.0716771318. The cubic root of 64578448 is about 401.2014874563.

The spelling of 64578448 in words is "sixty-four million, five hundred seventy-eight thousand, four hundred forty-eight".