42660064 has 24 divisors (see below), whose sum is σ = 84180600. Its totient is φ = 21280896.

The previous prime is 42660053. The next prime is 42660083. The reversal of 42660064 is 46006624.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15462 + ... + 18010.

It is an arithmetic number, because the mean of its divisors is an integer number (3507525).

Almost surely, 2^42660064 is an apocalyptic number.

It is an amenable number.

42660064 is a deficient number, since it is larger than the sum of its proper divisors (41520536).

42660064 is a wasteful number, since it uses less digits than its factorization.

42660064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42660064 is about 6531.4672164836. The cubic root of 42660064 is about 349.4141600877.

Adding to 42660064 its reverse (46006624), we get a palindrome (88666688).

The spelling of 42660064 in words is "forty-two million, six hundred sixty thousand, sixty-four".