228700321 has 8 divisors (see below), whose sum is σ = 242182080. Its totient is φ = 215363088.

The previous prime is 228700319. The next prime is 228700327. The reversal of 228700321 is 123007822.

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 228700321 - 2¹ = 228700319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228700327) 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, 32866 + ... + 39211.

It is an arithmetic number, because the mean of its divisors is an integer number (30272760).

Almost surely, 2^228700321 is an apocalyptic number.

It is an amenable number.

228700321 is a deficient number, since it is larger than the sum of its proper divisors (13481759).

228700321 is a wasteful number, since it uses less digits than its factorization.

228700321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72263.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 228700321 is about 15122.8410359958. The cubic root of 228700321 is about 611.5363236072.

The spelling of 228700321 in words is "two hundred twenty-eight million, seven hundred thousand, three hundred twenty-one".