420530223 has 8 divisors (see below), whose sum is σ = 565947648. Its totient is φ = 277733144.

The previous prime is 420530219. The next prime is 420530233. The reversal of 420530223 is 322035024.

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 420530223 - 2² = 420530219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420530223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420530203) 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, 654711 + ... + 655352.

It is an arithmetic number, because the mean of its divisors is an integer number (70743456).

Almost surely, 2^420530223 is an apocalyptic number.

420530223 is a deficient number, since it is larger than the sum of its proper divisors (145417425).

420530223 is a wasteful number, since it uses less digits than its factorization.

420530223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310173.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 420530223 is about 20506.8335683498. The cubic root of 420530223 is about 749.2022468652.

Adding to 420530223 its reverse (322035024), we get a palindrome (742565247).

The spelling of 420530223 in words is "four hundred twenty million, five hundred thirty thousand, two hundred twenty-three".