40442303 has 16 divisors (see below), whose sum is σ = 48750336. Its totient is φ = 33095040.

The previous prime is 40442273. The next prime is 40442323. The reversal of 40442303 is 30324404.

It is a happy number.

It is not a de Polignac number, because 40442303 - 2²⁰ = 39393727 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 (40442323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401 + ... + 9002.

It is an arithmetic number, because the mean of its divisors is an integer number (3046896).

Almost surely, 2^40442303 is an apocalyptic number.

40442303 is a deficient number, since it is larger than the sum of its proper divisors (8308033).

40442303 is a wasteful number, since it uses less digits than its factorization.

40442303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40442303 is about 6359.4263106038. The cubic root of 40442303 is about 343.2511172939.

Adding to 40442303 its reverse (30324404), we get a palindrome (70766707).

The spelling of 40442303 in words is "forty million, four hundred forty-two thousand, three hundred three".