64202128 has 10 divisors (see below), whose sum is σ = 124391654. Its totient is φ = 32101056.

The previous prime is 64202111. The next prime is 64202129. The reversal of 64202128 is 82120246.

It is a happy number.

64202128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54641664 + 9560464 = 7392^2 + 3092^2 .

It is not an unprimeable number, because it can be changed into a prime (64202129) 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 as a sum of consecutive naturals, namely, 2006301 + ... + 2006332.

Almost surely, 2^64202128 is an apocalyptic number.

It is an amenable number.

64202128 is a deficient number, since it is larger than the sum of its proper divisors (60189526).

64202128 is a wasteful number, since it uses less digits than its factorization.

64202128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012641 (or 4012635 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 64202128 is about 8012.6230411770. The cubic root of 64202128 is about 400.4206574632.

The spelling of 64202128 in words is "sixty-four million, two hundred two thousand, one hundred twenty-eight".