424207231 has 4 divisors (see below), whose sum is σ = 484808272. Its totient is φ = 363606192.

The previous prime is 424207229. The next prime is 424207241. The reversal of 424207231 is 132702424.

It is a happy number.

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 424207231 - 2¹ = 424207229 is a prime.

It is a super-2 number, since 2×424207231² = 359903549665374722, 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 = 424207196 and 424207205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424207241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30300510 + ... + 30300523.

It is an arithmetic number, because the mean of its divisors is an integer number (121202068).

Almost surely, 2^424207231 is an apocalyptic number.

424207231 is a deficient number, since it is larger than the sum of its proper divisors (60601041).

424207231 is an equidigital number, since it uses as much as digits as its factorization.

424207231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60601040.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 424207231 is about 20596.2916807856. The cubic root of 424207231 is about 751.3795238111.

Adding to 424207231 its reverse (132702424), we get a palindrome (556909655).

The spelling of 424207231 in words is "four hundred twenty-four million, two hundred seven thousand, two hundred thirty-one".