64000442 has 16 divisors (see below), whose sum is σ = 105171264. Its totient is φ = 28968000.

The previous prime is 64000441. The next prime is 64000451. The reversal of 64000442 is 24400046.

64000442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64000441) 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 7 ways as a sum of consecutive naturals, for example, 734 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (6573204).

Almost surely, 2^64000442 is an apocalyptic number.

64000442 is a deficient number, since it is larger than the sum of its proper divisors (41170822).

64000442 is a wasteful number, since it uses less digits than its factorization.

64000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 64000442 is about 8000.0276249523. The cubic root of 64000442 is about 400.0009208312. Note that the first 3 decimals are identical.

Adding to 64000442 its reverse (24400046), we get a palindrome (88400488).

It can be divided in two parts, 6400044 and 2, that added together give a palindrome (6400046).

The spelling of 64000442 in words is "sixty-four million, four hundred forty-two", and thus it is an aban number.