42040303 has 4 divisors (see below), whose sum is σ = 44513280. Its totient is φ = 39567328.

The previous prime is 42040301. The next prime is 42040321. The reversal of 42040303 is 30304024.

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 42040303 - 2¹ = 42040301 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 (42040301) 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, 1236463 + ... + 1236496.

It is an arithmetic number, because the mean of its divisors is an integer number (11128320).

Almost surely, 2^42040303 is an apocalyptic number.

42040303 is a deficient number, since it is larger than the sum of its proper divisors (2472977).

42040303 is a wasteful number, since it uses less digits than its factorization.

42040303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472976.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 42040303 is about 6483.8493967704. The cubic root of 42040303 is about 347.7138148970.

Adding to 42040303 its reverse (30304024), we get a palindrome (72344327).

The spelling of 42040303 in words is "forty-two million, forty thousand, three hundred three".