228458769 has 24 divisors (see below), whose sum is σ = 382656960. Its totient is φ = 118678560.

The previous prime is 228458761. The next prime is 228458771. The reversal of 228458769 is 967854822.

It is not a de Polignac number, because 228458769 - 2³ = 228458761 is a prime.

It is a super-2 number, since 2×228458769² = 104386818265990722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228458761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42414 + ... + 47495.

It is an arithmetic number, because the mean of its divisors is an integer number (15944040).

Almost surely, 2^228458769 is an apocalyptic number.

It is an amenable number.

228458769 is a deficient number, since it is larger than the sum of its proper divisors (154198191).

228458769 is a wasteful number, since it uses less digits than its factorization.

228458769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89941 (or 89930 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 228458769 is about 15114.8525960394. The cubic root of 228458769 is about 611.3209473480.

The spelling of 228458769 in words is "two hundred twenty-eight million, four hundred fifty-eight thousand, seven hundred sixty-nine".