228118554 has 36 divisors (see below), whose sum is σ = 516702186. Its totient is φ = 72730416.

The previous prime is 228118487. The next prime is 228118559. The reversal of 228118554 is 455811822.

228118554 is a `hidden beast` number, since 22 + 81 + 1 + 8 + 554 = 666.

228118554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 162945225 + 65173329 = 12765^2 + 8073^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (228118559) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2457 + ... + 21500.

Almost surely, 2^228118554 is an apocalyptic number.

228118554 is an abundant number, since it is smaller than the sum of its proper divisors (288583632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228118554 is a wasteful number, since it uses less digits than its factorization.

228118554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24011 (or 23985 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 228118554 is about 15103.5940755835. The cubic root of 228118554 is about 611.0173420450.

The spelling of 228118554 in words is "two hundred twenty-eight million, one hundred eighteen thousand, five hundred fifty-four".