42939722 has 16 divisors (see below), whose sum is σ = 77941440. Its totient is φ = 17320128.

The previous prime is 42939707. The next prime is 42939733. The reversal of 42939722 is 22793924.

42939722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 89972 + ... + 90447.

It is an arithmetic number, because the mean of its divisors is an integer number (4871340).

Almost surely, 2^42939722 is an apocalyptic number.

42939722 is a deficient number, since it is larger than the sum of its proper divisors (35001718).

42939722 is a wasteful number, since it uses less digits than its factorization.

42939722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180445.

The product of its digits is 54432, while the sum is 38.

The square root of 42939722 is about 6552.8407580224. The cubic root of 42939722 is about 350.1760257421.

The spelling of 42939722 in words is "forty-two million, nine hundred thirty-nine thousand, seven hundred twenty-two".