426222623 has 8 divisors (see below), whose sum is σ = 455514192. Its totient is φ = 397399936.

The previous prime is 426222607. The next prime is 426222659. The reversal of 426222623 is 326222624.

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 426222623 - 2⁴ = 426222607 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 (426222523) 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, 115340 + ... + 118977.

It is an arithmetic number, because the mean of its divisors is an integer number (56939274).

Almost surely, 2^426222623 is an apocalyptic number.

426222623 is a deficient number, since it is larger than the sum of its proper divisors (29291569).

426222623 is a wasteful number, since it uses less digits than its factorization.

426222623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234441.

The product of its digits is 13824, while the sum is 29.

The square root of 426222623 is about 20645.1597959425. The cubic root of 426222623 is about 752.5675692721.

Subtracting from 426222623 its reverse (326222624), we obtain a palindrome (99999999).

The spelling of 426222623 in words is "four hundred twenty-six million, two hundred twenty-two thousand, six hundred twenty-three".