228030985 has 32 divisors (see below), whose sum is σ = 338913792. Its totient is φ = 143424000.

The previous prime is 228030967. The next prime is 228031007. The reversal of 228030985 is 589030822.

It is not a de Polignac number, because 228030985 - 2¹³ = 228022793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74485 + ... + 77485.

It is an arithmetic number, because the mean of its divisors is an integer number (10591056).

Almost surely, 2^228030985 is an apocalyptic number.

It is an amenable number.

228030985 is a deficient number, since it is larger than the sum of its proper divisors (110882807).

228030985 is a wasteful number, since it uses less digits than its factorization.

228030985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 228030985 is about 15100.6948515623. The cubic root of 228030985 is about 610.9391472866.

The spelling of 228030985 in words is "two hundred twenty-eight million, thirty thousand, nine hundred eighty-five".