228574321 has 4 divisors (see below), whose sum is σ = 228672000. Its totient is φ = 228476644.

The previous prime is 228574279. The next prime is 228574337. The reversal of 228574321 is 123475822.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 228574321 - 2⁷ = 228574193 is a prime.

It is a super-2 number, since 2×228574321² = 104492440441222082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228574421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45241 + ... + 50038.

It is an arithmetic number, because the mean of its divisors is an integer number (57168000).

Almost surely, 2^228574321 is an apocalyptic number.

It is an amenable number.

228574321 is a deficient number, since it is larger than the sum of its proper divisors (97679).

228574321 is an equidigital number, since it uses as much as digits as its factorization.

228574321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97678.

The product of its digits is 26880, while the sum is 34.

The square root of 228574321 is about 15118.6745781500. The cubic root of 228574321 is about 611.4239965068.

The spelling of 228574321 in words is "two hundred twenty-eight million, five hundred seventy-four thousand, three hundred twenty-one".