42008303 has 4 divisors (see below), whose sum is σ = 42219600. Its totient is φ = 41797008.

The previous prime is 42008299. The next prime is 42008311. The reversal of 42008303 is 30380024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42008303 - 2² = 42008299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42008363) 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, 105350 + ... + 105747.

It is an arithmetic number, because the mean of its divisors is an integer number (10554900).

Almost surely, 2^42008303 is an apocalyptic number.

42008303 is a deficient number, since it is larger than the sum of its proper divisors (211297).

42008303 is a wasteful number, since it uses less digits than its factorization.

42008303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211296.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42008303 is about 6481.3812571087. The cubic root of 42008303 is about 347.6255688915.

Adding to 42008303 its reverse (30380024), we get a palindrome (72388327).

The spelling of 42008303 in words is "forty-two million, eight thousand, three hundred three".