224004431 has 6 divisors (see below), whose sum is σ = 260576640. Its totient is φ = 192003756.

The previous prime is 224004413. The next prime is 224004457. The reversal of 224004431 is 134400422.

224004431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224004431 - 2²² = 219810127 is a prime.

It is a super-2 number, since 2×224004431² = 100355970215267522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224000431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2285711 + ... + 2285808.

It is an arithmetic number, because the mean of its divisors is an integer number (43429440).

Almost surely, 2^224004431 is an apocalyptic number.

224004431 is a deficient number, since it is larger than the sum of its proper divisors (36572209).

224004431 is an equidigital number, since it uses as much as digits as its factorization.

224004431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571533 (or 4571526 counting only the distinct ones).

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

The square root of 224004431 is about 14966.7775756841. Note that the first 3 decimals coincide. The cubic root of 224004431 is about 607.3217988504.

Adding to 224004431 its reverse (134400422), we get a palindrome (358404853).

The spelling of 224004431 in words is "two hundred twenty-four million, four thousand, four hundred thirty-one".