228230491 has 8 divisors (see below), whose sum is σ = 241862544. Its totient is φ = 214621440.

The previous prime is 228230441. The next prime is 228230501. The reversal of 228230491 is 194032822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228230491 - 2⁷ = 228230363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228230441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17376 + ... + 27538.

It is an arithmetic number, because the mean of its divisors is an integer number (30232818).

Almost surely, 2^228230491 is an apocalyptic number.

228230491 is a deficient number, since it is larger than the sum of its proper divisors (13632053).

228230491 is a wasteful number, since it uses less digits than its factorization.

228230491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11501.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 228230491 is about 15107.2992622772. The cubic root of 228230491 is about 611.1172670809.

The spelling of 228230491 in words is "two hundred twenty-eight million, two hundred thirty thousand, four hundred ninety-one".