226730393 has 2 divisors, whose sum is σ = 226730394. Its totient is φ = 226730392.

The previous prime is 226730359. The next prime is 226730429. The reversal of 226730393 is 393037622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224160784 + 2569609 = 14972^2 + 1603^2 .

It is a cyclic number.

It is not a de Polignac number, because 226730393 - 2¹⁴ = 226714009 is a prime.

It is a super-2 number, since 2×226730393² = 102813342219868898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (226730593) 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, 113365196 + 113365197.

It is an arithmetic number, because the mean of its divisors is an integer number (113365197).

Almost surely, 2^226730393 is an apocalyptic number.

It is an amenable number.

226730393 is a deficient number, since it is larger than the sum of its proper divisors (1).

226730393 is an equidigital number, since it uses as much as digits as its factorization.

226730393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 226730393 is about 15057.5692925518. The cubic root of 226730393 is about 609.7754194326.

The spelling of 226730393 in words is "two hundred twenty-six million, seven hundred thirty thousand, three hundred ninety-three".