224023431 has 4 divisors (see below), whose sum is σ = 298697912. Its totient is φ = 149348952.

The previous prime is 224023379. The next prime is 224023441. The reversal of 224023431 is 134320422.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 224023431 - 2¹¹ = 224021383 is a prime.

It is a super-2 number, since 2×224023431² = 100372995274023522, 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 = 224023398 and 224023407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224023441) 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, 37337236 + ... + 37337241.

It is an arithmetic number, because the mean of its divisors is an integer number (74674478).

Almost surely, 2^224023431 is an apocalyptic number.

224023431 is a deficient number, since it is larger than the sum of its proper divisors (74674481).

224023431 is an equidigital number, since it uses as much as digits as its factorization.

224023431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74674480.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 224023431 is about 14967.4123013967. The cubic root of 224023431 is about 607.3389693262.

Adding to 224023431 its reverse (134320422), we get a palindrome (358343853).

The spelling of 224023431 in words is "two hundred twenty-four million, twenty-three thousand, four hundred thirty-one".