228157886 has 8 divisors (see below), whose sum is σ = 373349304. Its totient is φ = 103708120.

The previous prime is 228157879. The next prime is 228157903. The reversal of 228157886 is 688751822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 228157886.

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 3 ways as a sum of consecutive naturals, for example, 5185385 + ... + 5185428.

It is an arithmetic number, because the mean of its divisors is an integer number (46668663).

Almost surely, 2^228157886 is an apocalyptic number.

228157886 is a deficient number, since it is larger than the sum of its proper divisors (145191418).

228157886 is a wasteful number, since it uses less digits than its factorization.

228157886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370826.

The product of its digits is 430080, while the sum is 47.

The square root of 228157886 is about 15104.8960936512. The cubic root of 228157886 is about 611.0524570507.

The spelling of 228157886 in words is "two hundred twenty-eight million, one hundred fifty-seven thousand, eight hundred eighty-six".