421425323 has 4 divisors (see below), whose sum is σ = 459736728. Its totient is φ = 383113920.

The previous prime is 421425317. The next prime is 421425337. The reversal of 421425323 is 323524124.

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 421425323 - 2¹⁶ = 421359787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421425292 and 421425301.

It is not an unprimeable number, because it can be changed into a prime (421428323) 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, 19155686 + ... + 19155707.

It is an arithmetic number, because the mean of its divisors is an integer number (114934182).

Almost surely, 2^421425323 is an apocalyptic number.

421425323 is a deficient number, since it is larger than the sum of its proper divisors (38311405).

421425323 is a wasteful number, since it uses less digits than its factorization.

421425323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311404.

The product of its digits is 5760, while the sum is 26.

The square root of 421425323 is about 20528.6463996046. The cubic root of 421425323 is about 749.7334300059.

Adding to 421425323 its reverse (323524124), we get a palindrome (744949447).

The spelling of 421425323 in words is "four hundred twenty-one million, four hundred twenty-five thousand, three hundred twenty-three".