421414423 has 4 divisors (see below), whose sum is σ = 432804040. Its totient is φ = 410024808.

The previous prime is 421414421. The next prime is 421414439. The reversal of 421414423 is 324414124.

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 421414423 - 2¹ = 421414421 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 (421414421) 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, 5694753 + ... + 5694826.

It is an arithmetic number, because the mean of its divisors is an integer number (108201010).

Almost surely, 2^421414423 is an apocalyptic number.

421414423 is a deficient number, since it is larger than the sum of its proper divisors (11389617).

421414423 is a wasteful number, since it uses less digits than its factorization.

421414423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389616.

The product of its digits is 3072, while the sum is 25.

The square root of 421414423 is about 20528.3809152110. The cubic root of 421414423 is about 749.7269660969.

Adding to 421414423 its reverse (324414124), we get a palindrome (745828547).

It can be divided in two parts, 42141 and 4423, that added together give a palindrome (46564).

The spelling of 421414423 in words is "four hundred twenty-one million, four hundred fourteen thousand, four hundred twenty-three".