64199328 has 96 divisors (see below), whose sum is σ = 180613440. Its totient is φ = 19906560.

The previous prime is 64199323. The next prime is 64199383. The reversal of 64199328 is 82399146.

64199328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 64199328.

It is not an unprimeable number, because it can be changed into a prime (64199323) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 110976 + ... + 111552.

It is an arithmetic number, because the mean of its divisors is an integer number (1881390).

Almost surely, 2^64199328 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 64199328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90306720).

64199328 is an abundant number, since it is smaller than the sum of its proper divisors (116414112).

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

64199328 is a wasteful number, since it uses less digits than its factorization.

64199328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 662 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 64199328 is about 8012.4483149659. The cubic root of 64199328 is about 400.4148362951.

The spelling of 64199328 in words is "sixty-four million, one hundred ninety-nine thousand, three hundred twenty-eight".