424401023 has 4 divisors (see below), whose sum is σ = 433430880. Its totient is φ = 415371168.

The previous prime is 424401007. The next prime is 424401041. The reversal of 424401023 is 320104424.

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 424401023 - 2⁴ = 424401007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424400986 and 424401004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424401623) 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, 4514858 + ... + 4514951.

It is an arithmetic number, because the mean of its divisors is an integer number (108357720).

Almost surely, 2^424401023 is an apocalyptic number.

424401023 is a deficient number, since it is larger than the sum of its proper divisors (9029857).

424401023 is an equidigital number, since it uses as much as digits as its factorization.

424401023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029856.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 424401023 is about 20600.9956798209. The cubic root of 424401023 is about 751.4939247943.

Adding to 424401023 its reverse (320104424), we get a palindrome (744505447).

The spelling of 424401023 in words is "four hundred twenty-four million, four hundred one thousand, twenty-three".