423034421 has 4 divisors (see below), whose sum is σ = 423225600. Its totient is φ = 422843244.

The previous prime is 423034369. The next prime is 423034427. The reversal of 423034421 is 124430324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423034421 - 2¹⁰ = 423033397 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 (423034427) 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, 92231 + ... + 96708.

It is an arithmetic number, because the mean of its divisors is an integer number (105806400).

Almost surely, 2^423034421 is an apocalyptic number.

It is an amenable number.

423034421 is a deficient number, since it is larger than the sum of its proper divisors (191179).

423034421 is a wasteful number, since it uses less digits than its factorization.

423034421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191178.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 423034421 is about 20567.8005873258. The cubic root of 423034421 is about 750.6864358457.

Adding to 423034421 its reverse (124430324), we get a palindrome (547464745).

The spelling of 423034421 in words is "four hundred twenty-three million, thirty-four thousand, four hundred twenty-one".