228249530 has 8 divisors (see below), whose sum is σ = 410849172. Its totient is φ = 91299808.

The previous prime is 228249529. The next prime is 228249551. The reversal of 228249530 is 35942822.

It can be written as a sum of positive squares in 2 ways, for example, as 186349801 + 41899729 = 13651^2 + 6473^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11412467 + ... + 11412486.

Almost surely, 2^228249530 is an apocalyptic number.

228249530 is a deficient number, since it is larger than the sum of its proper divisors (182599642).

228249530 is a wasteful number, since it uses less digits than its factorization.

228249530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22824960.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 228249530 is about 15107.9293750004. The cubic root of 228249530 is about 611.1342597537.

The spelling of 228249530 in words is "two hundred twenty-eight million, two hundred forty-nine thousand, five hundred thirty".