228559590 has 256 divisors, whose sum is σ = 743178240. Its totient is φ = 48885120.

The previous prime is 228559571. The next prime is 228559601. The reversal of 228559590 is 95955822.

228559590 is a `hidden beast` number, since 2 + 2 + 8 + 5 + 59 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2753689 + ... + 2753771.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^228559590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228559590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371589120).

228559590 is an abundant number, since it is smaller than the sum of its proper divisors (514618650).

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

228559590 is a wasteful number, since it uses less digits than its factorization.

228559590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 228559590 is about 15118.1873913509. The cubic root of 228559590 is about 611.4108613475.

The spelling of 228559590 in words is "two hundred twenty-eight million, five hundred fifty-nine thousand, five hundred ninety".