42723338 has 16 divisors (see below), whose sum is σ = 74944320. Its totient is φ = 17883936.

The previous prime is 42723319. The next prime is 42723341. The reversal of 42723338 is 83332724.

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 7 ways as a sum of consecutive naturals, for example, 34883 + ... + 36086.

It is an arithmetic number, because the mean of its divisors is an integer number (4684020).

Almost surely, 2^42723338 is an apocalyptic number.

42723338 is a deficient number, since it is larger than the sum of its proper divisors (32220982).

42723338 is a wasteful number, since it uses less digits than its factorization.

42723338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71021.

The product of its digits is 24192, while the sum is 32.

The square root of 42723338 is about 6536.3092032125. The cubic root of 42723338 is about 349.5868267286.

The spelling of 42723338 in words is "forty-two million, seven hundred twenty-three thousand, three hundred thirty-eight".