42944505 has 32 divisors (see below), whose sum is σ = 71539200. Its totient is φ = 21971712.

The previous prime is 42944497. The next prime is 42944527. The reversal of 42944505 is 50544924.

It is not a de Polignac number, because 42944505 - 2³ = 42944497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116832 + ... + 117198.

It is an arithmetic number, because the mean of its divisors is an integer number (2235600).

Almost surely, 2^42944505 is an apocalyptic number.

It is an amenable number.

42944505 is a deficient number, since it is larger than the sum of its proper divisors (28594695).

42944505 is a wasteful number, since it uses less digits than its factorization.

42944505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 42944505 is about 6553.2057040810. The cubic root of 42944505 is about 350.1890271440.

The spelling of 42944505 in words is "forty-two million, nine hundred forty-four thousand, five hundred five".