228694099 has 16 divisors (see below), whose sum is σ = 242922240. Its totient is φ = 214980480.

The previous prime is 228694079. The next prime is 228694111. The reversal of 228694099 is 990496822.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228694099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228694049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178449 + ... + 179725.

It is an arithmetic number, because the mean of its divisors is an integer number (15182640).

Almost surely, 2^228694099 is an apocalyptic number.

228694099 is a deficient number, since it is larger than the sum of its proper divisors (14228141).

228694099 is a wasteful number, since it uses less digits than its factorization.

228694099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 228694099 is about 15122.6353192822. The cubic root of 228694099 is about 611.5307777565.

The spelling of 228694099 in words is "two hundred twenty-eight million, six hundred ninety-four thousand, ninety-nine".