423305501 has 8 divisors (see below), whose sum is σ = 442063104. Its totient is φ = 404577360.

The previous prime is 423305473. The next prime is 423305537. The reversal of 423305501 is 105503324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423305501 - 2¹⁴ = 423289117 is a prime.

It is a super-2 number, since 2×423305501² = 358375094353722002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423305591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25100 + ... + 38426.

It is an arithmetic number, because the mean of its divisors is an integer number (55257888).

Almost surely, 2^423305501 is an apocalyptic number.

It is an amenable number.

423305501 is a deficient number, since it is larger than the sum of its proper divisors (18757603).

423305501 is a wasteful number, since it uses less digits than its factorization.

423305501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14731.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 423305501 is about 20574.3894441609. The cubic root of 423305501 is about 750.8467479604.

Adding to 423305501 its reverse (105503324), we get a palindrome (528808825).

The spelling of 423305501 in words is "four hundred twenty-three million, three hundred five thousand, five hundred one".