42004433 has 8 divisors (see below), whose sum is σ = 44588520. Its totient is φ = 39432960.

The previous prime is 42004429. The next prime is 42004439. The reversal of 42004433 is 33440024.

It is a happy number.

42004433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 117649 + 41886784 = 343^2 + 6472^2 .

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 42004433 - 2² = 42004429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42004439) 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 7 ways as a sum of consecutive naturals, for example, 4223 + ... + 10091.

It is an arithmetic number, because the mean of its divisors is an integer number (5573565).

Almost surely, 2^42004433 is an apocalyptic number.

It is an amenable number.

42004433 is a deficient number, since it is larger than the sum of its proper divisors (2584087).

42004433 is a wasteful number, since it uses less digits than its factorization.

42004433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 42004433 is about 6481.0827027589. The cubic root of 42004433 is about 347.6148936029.

Adding to 42004433 its reverse (33440024), we get a palindrome (75444457).

The spelling of 42004433 in words is "forty-two million, four thousand, four hundred thirty-three".