228940244 has 18 divisors (see below), whose sum is σ = 433836270. Its totient is φ = 105664416.

The previous prime is 228940219. The next prime is 228940319. The reversal of 228940244 is 442049822.

It can be written as a sum of positive squares in 3 ways, for example, as 32604100 + 196336144 = 5710^2 + 14012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168659 + ... + 170010.

It is an arithmetic number, because the mean of its divisors is an integer number (24102015).

Almost surely, 2^228940244 is an apocalyptic number.

It is an amenable number.

228940244 is a deficient number, since it is larger than the sum of its proper divisors (204896026).

228940244 is a wasteful number, since it uses less digits than its factorization.

228940244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338699 (or 338684 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 228940244 is about 15130.7714277891. The cubic root of 228940244 is about 611.7500973227.

The spelling of 228940244 in words is "two hundred twenty-eight million, nine hundred forty thousand, two hundred forty-four".