226890493 has 2 divisors, whose sum is σ = 226890494. Its totient is φ = 226890492.

The previous prime is 226890491. The next prime is 226890523. The reversal of 226890493 is 394098622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207994084 + 18896409 = 14422^2 + 4347^2 .

It is a cyclic number.

It is not a de Polignac number, because 226890493 - 2¹ = 226890491 is a prime.

Together with 226890491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226890491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113445246 + 113445247.

It is an arithmetic number, because the mean of its divisors is an integer number (113445247).

Almost surely, 2^226890493 is an apocalyptic number.

It is an amenable number.

226890493 is a deficient number, since it is larger than the sum of its proper divisors (1).

226890493 is an equidigital number, since it uses as much as digits as its factorization.

226890493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 226890493 is about 15062.8846174961. The cubic root of 226890493 is about 609.9189115539.

The spelling of 226890493 in words is "two hundred twenty-six million, eight hundred ninety thousand, four hundred ninety-three".