42330531 has 8 divisors (see below), whose sum is σ = 58261504. Its totient is φ = 27309960.

The previous prime is 42330487. The next prime is 42330551. The reversal of 42330531 is 13503324.

42330531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42330531 - 2⁶ = 42330467 is a prime.

It is a super-3 number, since 3×42330531³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42330498 and 42330507.

It is not an unprimeable number, because it can be changed into a prime (42330551) 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, 227491 + ... + 227676.

It is an arithmetic number, because the mean of its divisors is an integer number (7282688).

Almost surely, 2^42330531 is an apocalyptic number.

42330531 is a deficient number, since it is larger than the sum of its proper divisors (15930973).

42330531 is a wasteful number, since it uses less digits than its factorization.

42330531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455201.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 42330531 is about 6506.1917432550. The cubic root of 42330531 is about 348.5121356912.

Adding to 42330531 its reverse (13503324), we get a palindrome (55833855).

The spelling of 42330531 in words is "forty-two million, three hundred thirty thousand, five hundred thirty-one".