42272317 has 8 divisors (see below), whose sum is σ = 43287552. Its totient is φ = 41262000.

The previous prime is 42272291. The next prime is 42272327. The reversal of 42272317 is 71327224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42272317 - 2¹⁹ = 41748029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272327) by changing a digit.

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, 20692 + ... + 22642.

It is an arithmetic number, because the mean of its divisors is an integer number (5410944).

Almost surely, 2^42272317 is an apocalyptic number.

42272317 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42272317 is a deficient number, since it is larger than the sum of its proper divisors (1015235).

42272317 is a wasteful number, since it uses less digits than its factorization.

42272317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459.

The product of its digits is 4704, while the sum is 28.

The square root of 42272317 is about 6501.7164656727. The cubic root of 42272317 is about 348.3523015446.

It can be divided in two parts, 422723 and 17, that added together give a triangular number (422740 = T₉₁₉).

The spelling of 42272317 in words is "forty-two million, two hundred seventy-two thousand, three hundred seventeen".