228498329 has 4 divisors (see below), whose sum is σ = 228627984. Its totient is φ = 228368676.

The previous prime is 228498323. The next prime is 228498331. The reversal of 228498329 is 923894822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 923894822 = 2 ⋅461947411.

It is a cyclic number.

It is not a de Polignac number, because 228498329 - 2¹⁶ = 228432793 is a prime.

It is a super-2 number, since 2×228498329² = 104422972711584482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228498323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62147 + ... + 65720.

It is an arithmetic number, because the mean of its divisors is an integer number (57156996).

Almost surely, 2^228498329 is an apocalyptic number.

It is an amenable number.

228498329 is a deficient number, since it is larger than the sum of its proper divisors (129655).

228498329 is a wasteful number, since it uses less digits than its factorization.

228498329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129654.

The product of its digits is 497664, while the sum is 47.

The square root of 228498329 is about 15116.1611859625. The cubic root of 228498329 is about 611.3562308276.

The spelling of 228498329 in words is "two hundred twenty-eight million, four hundred ninety-eight thousand, three hundred twenty-nine".