42303423 has 4 divisors (see below), whose sum is σ = 56404568. Its totient is φ = 28202280.

The previous prime is 42303421. The next prime is 42303449. The reversal of 42303423 is 32430324.

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

It is not a de Polignac number, because 42303423 - 2¹ = 42303421 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 42303423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42303421) 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, 7050568 + ... + 7050573.

It is an arithmetic number, because the mean of its divisors is an integer number (14101142).

Almost surely, 2^42303423 is an apocalyptic number.

42303423 is a deficient number, since it is larger than the sum of its proper divisors (14101145).

42303423 is a wasteful number, since it uses less digits than its factorization.

42303423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14101144.

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

The square root of 42303423 is about 6504.1081633072. The cubic root of 42303423 is about 348.4377253767.

Adding to 42303423 its reverse (32430324), we get a palindrome (74733747).

The spelling of 42303423 in words is "forty-two million, three hundred three thousand, four hundred twenty-three".