42403323 has 8 divisors (see below), whose sum is σ = 56570368. Its totient is φ = 28252584.

The previous prime is 42403313. The next prime is 42403327. The reversal of 42403323 is 32330424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42403323 - 2¹⁰ = 42402299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42403323.

It is not an unprimeable number, because it can be changed into a prime (42403327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4686 + ... + 10332.

It is an arithmetic number, because the mean of its divisors is an integer number (7071296).

Almost surely, 2^42403323 is an apocalyptic number.

42403323 is a deficient number, since it is larger than the sum of its proper divisors (14167045).

42403323 is a wasteful number, since it uses less digits than its factorization.

42403323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 42403323 is about 6511.7833962748. The cubic root of 42403323 is about 348.7117895984.

Adding to 42403323 its reverse (32330424), we get a palindrome (74733747).

The spelling of 42403323 in words is "forty-two million, four hundred three thousand, three hundred twenty-three".