228073885 has 8 divisors (see below), whose sum is σ = 294741720. Its totient is φ = 168423744.

The previous prime is 228073877. The next prime is 228073897. The reversal of 228073885 is 588370822.

It can be written as a sum of positive squares in 4 ways, for example, as 3481 + 228070404 = 59^2 + 15102^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 228073885 - 2³ = 228073877 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1754350 + ... + 1754479.

It is an arithmetic number, because the mean of its divisors is an integer number (36842715).

Almost surely, 2^228073885 is an apocalyptic number.

It is an amenable number.

228073885 is a deficient number, since it is larger than the sum of its proper divisors (66667835).

228073885 is a wasteful number, since it uses less digits than its factorization.

228073885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508847.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 228073885 is about 15102.1152491961. The cubic root of 228073885 is about 610.9774573522.

The spelling of 228073885 in words is "two hundred twenty-eight million, seventy-three thousand, eight hundred eighty-five".