228828940 has 24 divisors (see below), whose sum is σ = 481239360. Its totient is φ = 91398528.

The previous prime is 228828923. The next prime is 228828961. The reversal of 228828940 is 49828822.

It is a happy number.

228828940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6424 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (20051640).

Almost surely, 2^228828940 is an apocalyptic number.

228828940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228828940 is an abundant number, since it is smaller than the sum of its proper divisors (252410420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228828940 is a wasteful number, since it uses less digits than its factorization.

228828940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16641 (or 16639 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 228828940 is about 15127.0929130484. The cubic root of 228828940 is about 611.6509429625.

The spelling of 228828940 in words is "two hundred twenty-eight million, eight hundred twenty-eight thousand, nine hundred forty".