42443303 has 32 divisors (see below), whose sum is σ = 53084160. Its totient is φ = 33153120.

The previous prime is 42443281. The next prime is 42443311. The reversal of 42443303 is 30334424.

It is a happy number.

It is not a de Polignac number, because 42443303 - 2⁶ = 42443239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42443383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537218 + ... + 537296.

It is an arithmetic number, because the mean of its divisors is an integer number (1658880).

Almost surely, 2^42443303 is an apocalyptic number.

42443303 is a deficient number, since it is larger than the sum of its proper divisors (10640857).

42443303 is a wasteful number, since it uses less digits than its factorization.

42443303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 42443303 is about 6514.8524925742. The cubic root of 42443303 is about 348.8213495501.

Adding to 42443303 its reverse (30334424), we get a palindrome (72777727).

The spelling of 42443303 in words is "forty-two million, four hundred forty-three thousand, three hundred three".