224429819 has 2 divisors, whose sum is σ = 224429820. Its totient is φ = 224429818.

The previous prime is 224429809. The next prime is 224429831. The reversal of 224429819 is 918924422.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224429819 is a prime.

It is a super-2 number, since 2×224429819² = 100737487312745522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (224429809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112214909 + 112214910.

It is an arithmetic number, because the mean of its divisors is an integer number (112214910).

Almost surely, 2^224429819 is an apocalyptic number.

224429819 is a deficient number, since it is larger than the sum of its proper divisors (1).

224429819 is an equidigital number, since it uses as much as digits as its factorization.

224429819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 224429819 is about 14980.9819104089. The cubic root of 224429819 is about 607.7059936946.

The spelling of 224429819 in words is "two hundred twenty-four million, four hundred twenty-nine thousand, eight hundred nineteen".