228785099 has 16 divisors (see below), whose sum is σ = 257554080. Its totient is φ = 201945600.

The previous prime is 228785093. The next prime is 228785129. The reversal of 228785099 is 990587822.

It is a cyclic number.

It is not a de Polignac number, because 228785099 - 2¹⁶ = 228719563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228785093) 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, 29117 + ... + 36129.

It is an arithmetic number, because the mean of its divisors is an integer number (16097130).

Almost surely, 2^228785099 is an apocalyptic number.

228785099 is a deficient number, since it is larger than the sum of its proper divisors (28768981).

228785099 is a wasteful number, since it uses less digits than its factorization.

228785099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 228785099 is about 15125.6437548952. The cubic root of 228785099 is about 611.6118786995.

The spelling of 228785099 in words is "two hundred twenty-eight million, seven hundred eighty-five thousand, ninety-nine".