228142586 has 16 divisors (see below), whose sum is σ = 391495680. Its totient is φ = 97676880.

The previous prime is 228142531. The next prime is 228142591. The reversal of 228142586 is 685241822.

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 7 ways as a sum of consecutive naturals, for example, 7175 + ... + 22533.

It is an arithmetic number, because the mean of its divisors is an integer number (24468480).

Almost surely, 2^228142586 is an apocalyptic number.

228142586 is a deficient number, since it is larger than the sum of its proper divisors (163353094).

228142586 is a wasteful number, since it uses less digits than its factorization.

228142586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16429.

The product of its digits is 61440, while the sum is 38.

The square root of 228142586 is about 15104.3896268601. The cubic root of 228142586 is about 611.0387979253.

The spelling of 228142586 in words is "two hundred twenty-eight million, one hundred forty-two thousand, five hundred eighty-six".