40081303 has 4 divisors (see below), whose sum is σ = 40837608. Its totient is φ = 39325000.

The previous prime is 40081297. The next prime is 40081309. The reversal of 40081303 is 30318004.

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

It is an interprime number because it is at equal distance from previous prime (40081297) and next prime (40081309).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40081303 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 (40081309) 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, 378073 + ... + 378178.

It is an arithmetic number, because the mean of its divisors is an integer number (10209402).

Almost surely, 2^40081303 is an apocalyptic number.

40081303 is a deficient number, since it is larger than the sum of its proper divisors (756305).

40081303 is an equidigital number, since it uses as much as digits as its factorization.

40081303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756304.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40081303 is about 6330.9796240392. The cubic root of 40081303 is about 342.2267428135.

Adding to 40081303 its reverse (30318004), we get a palindrome (70399307).

The spelling of 40081303 in words is "forty million, eighty-one thousand, three hundred three".