42040033 has 4 divisors (see below), whose sum is σ = 48045760. Its totient is φ = 36034308.

The previous prime is 42040007. The next prime is 42040051. The reversal of 42040033 is 33004024.

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 not a de Polignac number, because 42040033 - 2¹³ = 42031841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42039989 and 42040016.

It is not an unprimeable number, because it can be changed into a prime (42040093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002853 + ... + 3002866.

It is an arithmetic number, because the mean of its divisors is an integer number (12011440).

Almost surely, 2^42040033 is an apocalyptic number.

It is an amenable number.

42040033 is a deficient number, since it is larger than the sum of its proper divisors (6005727).

42040033 is an equidigital number, since it uses as much as digits as its factorization.

42040033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005726.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 42040033 is about 6483.8285757722. The cubic root of 42040033 is about 347.7130705086.

Adding to 42040033 its reverse (33004024), we get a palindrome (75044057).

The spelling of 42040033 in words is "forty-two million, forty thousand, thirty-three".