42672289 has 8 divisors (see below), whose sum is σ = 46599840. Its totient is φ = 38752800.

The previous prime is 42672269. The next prime is 42672293. The reversal of 42672289 is 98227624.

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 42672289 - 2⁵ = 42672257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42672269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16494 + ... + 18904.

It is an arithmetic number, because the mean of its divisors is an integer number (5824980).

Almost surely, 2^42672289 is an apocalyptic number.

It is an amenable number.

42672289 is a deficient number, since it is larger than the sum of its proper divisors (3927551).

42672289 is a wasteful number, since it uses less digits than its factorization.

42672289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its digits is 96768, while the sum is 40.

The square root of 42672289 is about 6532.4030034896. The cubic root of 42672289 is about 349.4475338472.

It can be divided in two parts, 4267 and 2289, that added together give a palindrome (6556).

The spelling of 42672289 in words is "forty-two million, six hundred seventy-two thousand, two hundred eighty-nine".