228181596 has 12 divisors (see below), whose sum is σ = 532423752. Its totient is φ = 76060528.

The previous prime is 228181573. The next prime is 228181601. The reversal of 228181596 is 695181822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9507555 + ... + 9507578.

It is an arithmetic number, because the mean of its divisors is an integer number (44368646).

Almost surely, 2^228181596 is an apocalyptic number.

It is an amenable number.

228181596 is an abundant number, since it is smaller than the sum of its proper divisors (304242156).

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

228181596 is a wasteful number, since it uses less digits than its factorization.

228181596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19015140 (or 19015138 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 228181596 is about 15105.6809181182. The cubic root of 228181596 is about 611.0736230251.

The spelling of 228181596 in words is "two hundred twenty-eight million, one hundred eighty-one thousand, five hundred ninety-six".