228288249 has 24 divisors (see below), whose sum is σ = 396693440. Its totient is φ = 123583968.

The previous prime is 228288227. The next prime is 228288283. The reversal of 228288249 is 942882822.

It is not a de Polignac number, because 228288249 - 2⁸ = 228287993 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228288349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94162 + ... + 96555.

Almost surely, 2^228288249 is an apocalyptic number.

It is an amenable number.

228288249 is a deficient number, since it is larger than the sum of its proper divisors (168405191).

228288249 is a wasteful number, since it uses less digits than its factorization.

228288249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190749 (or 190746 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 228288249 is about 15109.2107338537. The cubic root of 228288249 is about 611.1688142893.

The spelling of 228288249 in words is "two hundred twenty-eight million, two hundred eighty-eight thousand, two hundred forty-nine".