228749582 has 16 divisors (see below), whose sum is σ = 358469280. Its totient is φ = 109271712.

The previous prime is 228749581. The next prime is 228749617. The reversal of 228749582 is 285947822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228749581) 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, 44144 + ... + 49052.

It is an arithmetic number, because the mean of its divisors is an integer number (22404330).

Almost surely, 2^228749582 is an apocalyptic number.

228749582 is a deficient number, since it is larger than the sum of its proper divisors (129719698).

228749582 is a wasteful number, since it uses less digits than its factorization.

228749582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5947.

The product of its digits is 645120, while the sum is 47.

The square root of 228749582 is about 15124.4696435941. The cubic root of 228749582 is about 611.5802278280.

The spelling of 228749582 in words is "two hundred twenty-eight million, seven hundred forty-nine thousand, five hundred eighty-two".