228855590 has 16 divisors (see below), whose sum is σ = 419713488. Its totient is φ = 89814816.

The previous prime is 228855569. The next prime is 228855593. The reversal of 228855590 is 95558822.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228855593) by changing a digit.

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, 215372 + ... + 216431.

It is an arithmetic number, because the mean of its divisors is an integer number (26232093).

Almost surely, 2^228855590 is an apocalyptic number.

228855590 is a deficient number, since it is larger than the sum of its proper divisors (190857898).

228855590 is a wasteful number, since it uses less digits than its factorization.

228855590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431863.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 228855590 is about 15127.9737572485. The cubic root of 228855590 is about 611.6746868486.

The spelling of 228855590 in words is "two hundred twenty-eight million, eight hundred fifty-five thousand, five hundred ninety".