228024809 has 8 divisors (see below), whose sum is σ = 235791360. Its totient is φ = 220284000.

The previous prime is 228024803. The next prime is 228024827. The reversal of 228024809 is 908420822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228024809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228024803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12512 + ... + 24750.

It is an arithmetic number, because the mean of its divisors is an integer number (29473920).

Almost surely, 2^228024809 is an apocalyptic number.

It is an amenable number.

228024809 is a deficient number, since it is larger than the sum of its proper divisors (7766551).

228024809 is a wasteful number, since it uses less digits than its factorization.

228024809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 228024809 is about 15100.4903562765. The cubic root of 228024809 is about 610.9336316703.

The spelling of 228024809 in words is "two hundred twenty-eight million, twenty-four thousand, eight hundred nine".