42445766 has 16 divisors (see below), whose sum is σ = 69627600. Its totient is φ = 19246080.

The previous prime is 42445759. The next prime is 42445801. The reversal of 42445766 is 66754424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7730 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (4351725).

Almost surely, 2^42445766 is an apocalyptic number.

42445766 is a deficient number, since it is larger than the sum of its proper divisors (27181834).

42445766 is a wasteful number, since it uses less digits than its factorization.

42445766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759.

The product of its digits is 161280, while the sum is 38.

The square root of 42445766 is about 6515.0415194379. The cubic root of 42445766 is about 348.8280968287.

The spelling of 42445766 in words is "forty-two million, four hundred forty-five thousand, seven hundred sixty-six".