424520023 has 4 divisors (see below), whose sum is σ = 425086048. Its totient is φ = 423954000.

The previous prime is 424520003. The next prime is 424520051. The reversal of 424520023 is 320025424.

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 424520023 - 2²⁵ = 390965591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424519976 and 424520003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424520003) 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, 281886 + ... + 283387.

It is an arithmetic number, because the mean of its divisors is an integer number (106271512).

Almost surely, 2^424520023 is an apocalyptic number.

424520023 is a deficient number, since it is larger than the sum of its proper divisors (566025).

424520023 is an equidigital number, since it uses as much as digits as its factorization.

424520023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566024.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 424520023 is about 20603.8836873052. The cubic root of 424520023 is about 751.5641566546.

Adding to 424520023 its reverse (320025424), we get a palindrome (744545447).

The spelling of 424520023 in words is "four hundred twenty-four million, five hundred twenty thousand, twenty-three".