228247911 has 12 divisors (see below), whose sum is σ = 330007288. Its totient is φ = 152019504.

The previous prime is 228247907. The next prime is 228247919. The reversal of 228247911 is 119742822.

It is not a de Polignac number, because 228247911 - 2² = 228247907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228247919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1765 + ... + 21438.

Almost surely, 2^228247911 is an apocalyptic number.

228247911 is a deficient number, since it is larger than the sum of its proper divisors (101759377).

228247911 is a wasteful number, since it uses less digits than its factorization.

228247911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24302 (or 24299 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 228247911 is about 15107.8757937706. The cubic root of 228247911 is about 611.1328148019.

The spelling of 228247911 in words is "two hundred twenty-eight million, two hundred forty-seven thousand, nine hundred eleven".