42031033 has 4 divisors (see below), whose sum is σ = 45852048. Its totient is φ = 38210020.

The previous prime is 42030971. The next prime is 42031039. The reversal of 42031033 is 33013024.

42031033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42031033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42030998 and 42031016.

It is not an unprimeable number, because it can be changed into a prime (42031039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910491 + ... + 1910512.

It is an arithmetic number, because the mean of its divisors is an integer number (11463012).

Almost surely, 2^42031033 is an apocalyptic number.

It is an amenable number.

42031033 is a deficient number, since it is larger than the sum of its proper divisors (3821015).

42031033 is a wasteful number, since it uses less digits than its factorization.

42031033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821014.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 42031033 is about 6483.1345042348. The cubic root of 42031033 is about 347.6882557408.

Adding to 42031033 its reverse (33013024), we get a palindrome (75044057).

Subtracting from 42031033 its reverse (33013024), we obtain a square (9018009 = 3003²).

The spelling of 42031033 in words is "forty-two million, thirty-one thousand, thirty-three".