228490343 has 2 divisors, whose sum is σ = 228490344. Its totient is φ = 228490342.

The previous prime is 228490321. The next prime is 228490397. The reversal of 228490343 is 343094822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228490343 - 2⁶ = 228490279 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228490943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114245171 + 114245172.

It is an arithmetic number, because the mean of its divisors is an integer number (114245172).

Almost surely, 2^228490343 is an apocalyptic number.

228490343 is a deficient number, since it is larger than the sum of its proper divisors (1).

228490343 is an equidigital number, since it uses as much as digits as its factorization.

228490343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 228490343 is about 15115.8970292868. The cubic root of 228490343 is about 611.3491084593.

The spelling of 228490343 in words is "two hundred twenty-eight million, four hundred ninety thousand, three hundred forty-three".