224434381 has 2 divisors, whose sum is σ = 224434382. Its totient is φ = 224434380.

The previous prime is 224434333. The next prime is 224434409. The reversal of 224434381 is 183434422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214886281 + 9548100 = 14659^2 + 3090^2 .

It is a cyclic number.

It is not a de Polignac number, because 224434381 - 2¹⁵ = 224401613 is a prime.

It is a super-2 number, since 2×224434381² = 100741582749706322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224434321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112217190 + 112217191.

It is an arithmetic number, because the mean of its divisors is an integer number (112217191).

Almost surely, 2^224434381 is an apocalyptic number.

It is an amenable number.

224434381 is a deficient number, since it is larger than the sum of its proper divisors (1).

224434381 is an equidigital number, since it uses as much as digits as its factorization.

224434381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

The square root of 224434381 is about 14981.1341693478. The cubic root of 224434381 is about 607.7101112936.

The spelling of 224434381 in words is "two hundred twenty-four million, four hundred thirty-four thousand, three hundred eighty-one".