228659240 has 32 divisors (see below), whose sum is σ = 514913760. Its totient is φ = 91387200.

The previous prime is 228659237. The next prime is 228659267. The reversal of 228659240 is 42956822.

It is a junction number, because it is equal to n+sod(n) for n = 228659194 and 228659203.

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, 93635 + ... + 96045.

It is an arithmetic number, because the mean of its divisors is an integer number (16091055).

Almost surely, 2^228659240 is an apocalyptic number.

228659240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228659240 is an abundant number, since it is smaller than the sum of its proper divisors (286254520).

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

228659240 is a wasteful number, since it uses less digits than its factorization.

228659240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793 (or 4789 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 228659240 is about 15121.4827315313. The cubic root of 228659240 is about 611.4997050489.

The spelling of 228659240 in words is "two hundred twenty-eight million, six hundred fifty-nine thousand, two hundred forty".