42319223 has 4 divisors (see below), whose sum is σ = 43219680. Its totient is φ = 41418768.

The previous prime is 42319219. The next prime is 42319237. The reversal of 42319223 is 32291324.

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

It is a cyclic number.

It is not a de Polignac number, because 42319223 - 2² = 42319219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42319192 and 42319201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42319243) 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, 450158 + ... + 450251.

It is an arithmetic number, because the mean of its divisors is an integer number (10804920).

Almost surely, 2^42319223 is an apocalyptic number.

42319223 is a deficient number, since it is larger than the sum of its proper divisors (900457).

42319223 is an equidigital number, since it uses as much as digits as its factorization.

42319223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900456.

The product of its digits is 2592, while the sum is 26.

The square root of 42319223 is about 6505.3226668629. The cubic root of 42319223 is about 348.4810995721.

The spelling of 42319223 in words is "forty-two million, three hundred nineteen thousand, two hundred twenty-three".