228998 has 16 divisors (see below), whose sum is σ = 428544. Its totient is φ = 89160.

The previous prime is 228989. The next prime is 229003. The reversal of 228998 is 899822.

228998 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 590 + ... + 897.

It is an arithmetic number, because the mean of its divisors is an integer number (26784).

2²²⁸⁹⁹⁸ is an apocalyptic number.

228998 is a deficient number, since it is larger than the sum of its proper divisors (199546).

228998 is a wasteful number, since it uses less digits than its factorization.

228998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507.

The product of its digits is 20736, while the sum is 38.

The square root of 228998 is about 478.5373548638. The cubic root of 228998 is about 61.1801536172.

The spelling of 228998 in words is "two hundred twenty-eight thousand, nine hundred ninety-eight".