224429831 has 2 divisors, whose sum is σ = 224429832. Its totient is φ = 224429830.

The previous prime is 224429819. The next prime is 224429839. The reversal of 224429831 is 138924422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224429831 is a prime.

It is a super-2 number, since 2×224429831² = 100737498085377122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 224429791 and 224429800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224429839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112214915 + 112214916.

It is an arithmetic number, because the mean of its divisors is an integer number (112214916).

Almost surely, 2^224429831 is an apocalyptic number.

224429831 is a deficient number, since it is larger than the sum of its proper divisors (1).

224429831 is an equidigital number, since it uses as much as digits as its factorization.

224429831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 224429831 is about 14980.9823109167. The cubic root of 224429831 is about 607.7060045257.

The spelling of 224429831 in words is "two hundred twenty-four million, four hundred twenty-nine thousand, eight hundred thirty-one".