224942381 has 2 divisors, whose sum is σ = 224942382. Its totient is φ = 224942380.

The previous prime is 224942371. The next prime is 224942429. The reversal of 224942381 is 183249422.

224942381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122102500 + 102839881 = 11050^2 + 10141^2 .

It is a cyclic number.

It is not a de Polignac number, because 224942381 - 2¹⁸ = 224680237 is a prime.

It is a super-2 number, since 2×224942381² = 101198149539898322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224942371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112471190 + 112471191.

It is an arithmetic number, because the mean of its divisors is an integer number (112471191).

Almost surely, 2^224942381 is an apocalyptic number.

It is an amenable number.

224942381 is a deficient number, since it is larger than the sum of its proper divisors (1).

224942381 is an equidigital number, since it uses as much as digits as its factorization.

224942381 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 224942381 is about 14998.0792436898. The cubic root of 224942381 is about 608.1682765476.

The spelling of 224942381 in words is "two hundred twenty-four million, nine hundred forty-two thousand, three hundred eighty-one".