42448664 has 16 divisors (see below), whose sum is σ = 80053920. Its totient is φ = 21100960.

The previous prime is 42448649. The next prime is 42448687. The reversal of 42448664 is 46684424.

42448664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13952 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (5003370).

Almost surely, 2^42448664 is an apocalyptic number.

It is an amenable number.

42448664 is a deficient number, since it is larger than the sum of its proper divisors (37605256).

42448664 is a wasteful number, since it uses less digits than its factorization.

42448664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30850 (or 30846 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 42448664 is about 6515.2639240479. The cubic root of 42448664 is about 348.8360354361.

The spelling of 42448664 in words is "forty-two million, four hundred forty-eight thousand, six hundred sixty-four".