423415231 has 4 divisors (see below), whose sum is σ = 423852264. Its totient is φ = 422978200.

The previous prime is 423415217. The next prime is 423415249. The reversal of 423415231 is 132514324.

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 423415231 - 2⁵ = 423415199 is a prime.

It is a super-2 number, since 2×423415231² = 358560915685566722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423415196 and 423415205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423415271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217060 + ... + 219001.

It is an arithmetic number, because the mean of its divisors is an integer number (105963066).

Almost surely, 2^423415231 is an apocalyptic number.

423415231 is a deficient number, since it is larger than the sum of its proper divisors (437033).

423415231 is an equidigital number, since it uses as much as digits as its factorization.

423415231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437032.

The product of its digits is 2880, while the sum is 25.

The square root of 423415231 is about 20577.0559361635. The cubic root of 423415231 is about 750.9116209622.

Adding to 423415231 its reverse (132514324), we get a palindrome (555929555).

The spelling of 423415231 in words is "four hundred twenty-three million, four hundred fifteen thousand, two hundred thirty-one".