228335811 has 16 divisors (see below), whose sum is σ = 333400320. Its totient is φ = 137853920.

The previous prime is 228335803. The next prime is 228335813. The reversal of 228335811 is 118533822.

It is a cyclic number.

It is not a de Polignac number, because 228335811 - 2³ = 228335803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (228335813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4476 + ... + 21833.

It is an arithmetic number, because the mean of its divisors is an integer number (20837520).

Almost surely, 2^228335811 is an apocalyptic number.

228335811 is a deficient number, since it is larger than the sum of its proper divisors (105064509).

228335811 is a wasteful number, since it uses less digits than its factorization.

228335811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26586.

The product of its digits is 11520, while the sum is 33.

The square root of 228335811 is about 15110.7845924690. The cubic root of 228335811 is about 611.2112553593.

The spelling of 228335811 in words is "two hundred twenty-eight million, three hundred thirty-five thousand, eight hundred eleven".