228950840 has 32 divisors (see below), whose sum is σ = 520248960. Its totient is φ = 90672000.

The previous prime is 228950837. The next prime is 228950863. The reversal of 228950840 is 48059822.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 228950794 and 228950803.

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, 24296 + ... + 32375.

It is an arithmetic number, because the mean of its divisors is an integer number (16257780).

Almost surely, 2^228950840 is an apocalyptic number.

228950840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228950840 is an abundant number, since it is smaller than the sum of its proper divisors (291298120).

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

228950840 is a wasteful number, since it uses less digits than its factorization.

228950840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56783 (or 56779 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 228950840 is about 15131.1215711196. The cubic root of 228950840 is about 611.7595350169.

The spelling of 228950840 in words is "two hundred twenty-eight million, nine hundred fifty thousand, eight hundred forty".