42304433 has 4 divisors (see below), whose sum is σ = 42382320. Its totient is φ = 42226548.

The previous prime is 42304391. The next prime is 42304439. The reversal of 42304433 is 33440324.

It is a happy number.

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 42304433 - 2⁶ = 42304369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42304399 and 42304408.

It is not an unprimeable number, because it can be changed into a prime (42304439) 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 3 ways as a sum of consecutive naturals, for example, 38123 + ... + 39216.

It is an arithmetic number, because the mean of its divisors is an integer number (10595580).

Almost surely, 2^42304433 is an apocalyptic number.

It is an amenable number.

42304433 is a deficient number, since it is larger than the sum of its proper divisors (77887).

42304433 is an equidigital number, since it uses as much as digits as its factorization.

42304433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77886.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 42304433 is about 6504.1858060790. The cubic root of 42304433 is about 348.4404983541.

Adding to 42304433 its reverse (33440324), we get a palindrome (75744757).

The spelling of 42304433 in words is "forty-two million, three hundred four thousand, four hundred thirty-three".