228660582 has 16 divisors (see below), whose sum is σ = 457482240. Its totient is φ = 76193352.

The previous prime is 228660581. The next prime is 228660599. The reversal of 228660582 is 285066822.

It is a self number, because there is not a number n which added to its sum of digits gives 228660582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228660581) 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, 19803 + ... + 29145.

It is an arithmetic number, because the mean of its divisors is an integer number (28592640).

Almost surely, 2^228660582 is an apocalyptic number.

228660582 is an abundant number, since it is smaller than the sum of its proper divisors (228821658).

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

228660582 is a wasteful number, since it uses less digits than its factorization.

228660582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13427.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 228660582 is about 15121.5271054216. The cubic root of 228660582 is about 611.5009013429.

The spelling of 228660582 in words is "two hundred twenty-eight million, six hundred sixty thousand, five hundred eighty-two".