42272318 has 12 divisors (see below), whose sum is σ = 69697320. Its totient is φ = 19214580.

The previous prime is 42272291. The next prime is 42272327. The reversal of 42272318 is 81327224.

It is a Curzon number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 87098 + ... + 87581.

It is an arithmetic number, because the mean of its divisors is an integer number (5808110).

Almost surely, 2^42272318 is an apocalyptic number.

42272318 is a deficient number, since it is larger than the sum of its proper divisors (27425002).

42272318 is a wasteful number, since it uses less digits than its factorization.

42272318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174703 (or 174692 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 42272318 is about 6501.7165425755. The cubic root of 42272318 is about 348.3523042915.

The spelling of 42272318 in words is "forty-two million, two hundred seventy-two thousand, three hundred eighteen".