64468428 has 24 divisors (see below), whose sum is σ = 150586800. Its totient is φ = 21466560.

The previous prime is 64468423. The next prime is 64468429. The reversal of 64468428 is 82486446.

It is a self number, because there is not a number n which added to its sum of digits gives 64468428.

It is not an unprimeable number, because it can be changed into a prime (64468423) 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 7 ways as a sum of consecutive naturals, for example, 11898 + ... + 16446.

It is an arithmetic number, because the mean of its divisors is an integer number (6274450).

Almost surely, 2^64468428 is an apocalyptic number.

It is an amenable number.

64468428 is an abundant number, since it is smaller than the sum of its proper divisors (86118372).

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

64468428 is a wasteful number, since it uses less digits than its factorization.

64468428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737 (or 5735 counting only the distinct ones).

The product of its digits is 294912, while the sum is 42.

The square root of 64468428 is about 8029.2233746484. The cubic root of 64468428 is about 400.9735203896.

The spelling of 64468428 in words is "sixty-four million, four hundred sixty-eight thousand, four hundred twenty-eight".