42189033 has 8 divisors (see below), whose sum is σ = 57449088. Its totient is φ = 27527504.

The previous prime is 42188989. The next prime is 42189067. The reversal of 42189033 is 33098124.

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 42189033 - 2²⁰ = 41140457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42189073) 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, 149466 + ... + 149747.

It is an arithmetic number, because the mean of its divisors is an integer number (7181136).

Almost surely, 2^42189033 is an apocalyptic number.

It is an amenable number.

42189033 is a deficient number, since it is larger than the sum of its proper divisors (15260055).

42189033 is a wasteful number, since it uses less digits than its factorization.

42189033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299263.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 42189033 is about 6495.3085377063. The cubic root of 42189033 is about 348.1233790955.

Subtracting from 42189033 its reverse (33098124), we obtain a palindrome (9090909).

The spelling of 42189033 in words is "forty-two million, one hundred eighty-nine thousand, thirty-three".