42030313 has 8 divisors (see below), whose sum is σ = 45553928. Its totient is φ = 38548224.

The previous prime is 42030277. The next prime is 42030319. The reversal of 42030313 is 31303024.

It can be written as a sum of positive squares in 4 ways, for example, as 6365529 + 35664784 = 2523^2 + 5972^2 .

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

It is not a de Polignac number, because 42030313 - 2²¹ = 39933161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42030319) 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 7 ways as a sum of consecutive naturals, for example, 8256 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (5694241).

Almost surely, 2^42030313 is an apocalyptic number.

It is an amenable number.

42030313 is a deficient number, since it is larger than the sum of its proper divisors (3523615).

42030313 is a wasteful number, since it uses less digits than its factorization.

42030313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20763.

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

The square root of 42030313 is about 6483.0789753018. The cubic root of 42030313 is about 347.6862704063.

Adding to 42030313 its reverse (31303024), we get a palindrome (73333337).

The spelling of 42030313 in words is "forty-two million, thirty thousand, three hundred thirteen".