42172367 has 4 divisors (see below), whose sum is σ = 42766416. Its totient is φ = 41578320.

The previous prime is 42172331. The next prime is 42172373. The reversal of 42172367 is 76327124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42172367 - 2⁶ = 42172303 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 (42172327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296918 + ... + 297059.

It is an arithmetic number, because the mean of its divisors is an integer number (10691604).

Almost surely, 2^42172367 is an apocalyptic number.

42172367 is a deficient number, since it is larger than the sum of its proper divisors (594049).

42172367 is an equidigital number, since it uses as much as digits as its factorization.

42172367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594048.

The product of its digits is 14112, while the sum is 32.

The square root of 42172367 is about 6494.0254850131. The cubic root of 42172367 is about 348.0775331496.

The spelling of 42172367 in words is "forty-two million, one hundred seventy-two thousand, three hundred sixty-seven".