64585428 has 12 divisors (see below), whose sum is σ = 150699360. Its totient is φ = 21528472.

The previous prime is 64585421. The next prime is 64585439. The reversal of 64585428 is 82458546.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 64585428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64585421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691048 + ... + 2691071.

It is an arithmetic number, because the mean of its divisors is an integer number (12558280).

Almost surely, 2^64585428 is an apocalyptic number.

It is an amenable number.

64585428 is an abundant number, since it is smaller than the sum of its proper divisors (86113932).

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

64585428 is a wasteful number, since it uses less digits than its factorization.

64585428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5382126 (or 5382124 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 64585428 is about 8036.5059571931. The cubic root of 64585428 is about 401.2159416361.

The spelling of 64585428 in words is "sixty-four million, five hundred eighty-five thousand, four hundred twenty-eight".