228133850 has 24 divisors (see below), whose sum is σ = 484948128. Its totient is φ = 78217200.

The previous prime is 228133837. The next prime is 228133879. The reversal of 228133850 is 58331822.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325556 + ... + 326255.

It is an arithmetic number, because the mean of its divisors is an integer number (20206172).

Almost surely, 2^228133850 is an apocalyptic number.

228133850 is an abundant number, since it is smaller than the sum of its proper divisors (256814278).

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

228133850 is a wasteful number, since it uses less digits than its factorization.

228133850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651830 (or 651825 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 228133850 is about 15104.1004366364. The cubic root of 228133850 is about 611.0309985585.

The spelling of 228133850 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, eight hundred fifty".