422345623 has 8 divisors (see below), whose sum is σ = 508085120. Its totient is φ = 342957240.

The previous prime is 422345621. The next prime is 422345669. The reversal of 422345623 is 326543224.

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

It is a cyclic number.

It is not a de Polignac number, because 422345623 - 2¹ = 422345621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422345621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587633 + ... + 1587898.

It is an arithmetic number, because the mean of its divisors is an integer number (63510640).

Almost surely, 2^422345623 is an apocalyptic number.

422345623 is a deficient number, since it is larger than the sum of its proper divisors (85739497).

422345623 is a wasteful number, since it uses less digits than its factorization.

422345623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175557.

The product of its digits is 34560, while the sum is 31.

The square root of 422345623 is about 20551.0491946275. The cubic root of 422345623 is about 750.2787840635.

Adding to 422345623 its reverse (326543224), we get a palindrome (748888847).

The spelling of 422345623 in words is "four hundred twenty-two million, three hundred forty-five thousand, six hundred twenty-three".