42023323 has 4 divisors (see below), whose sum is σ = 43850448. Its totient is φ = 40196200.

The previous prime is 42023309. The next prime is 42023347. The reversal of 42023323 is 32332024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42023323 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 42023323.

It is not an unprimeable number, because it can be changed into a prime (42023363) 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, 913528 + ... + 913573.

It is an arithmetic number, because the mean of its divisors is an integer number (10962612).

Almost surely, 2^42023323 is an apocalyptic number.

42023323 is a deficient number, since it is larger than the sum of its proper divisors (1827125).

42023323 is a wasteful number, since it uses less digits than its factorization.

42023323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827124.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 42023323 is about 6482.5398571856. The cubic root of 42023323 is about 347.6669949390. Note that the first 3 decimals are identical.

Adding to 42023323 its reverse (32332024), we get a palindrome (74355347).

The spelling of 42023323 in words is "forty-two million, twenty-three thousand, three hundred twenty-three".