228347858 has 4 divisors (see below), whose sum is σ = 342521790. Its totient is φ = 114173928.

The previous prime is 228347851. The next prime is 228347863. The reversal of 228347858 is 858743822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 198612649 + 29735209 = 14093^2 + 5453^2 .

It is not an unprimeable number, because it can be changed into a prime (228347851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57086963 + ... + 57086966.

Almost surely, 2^228347858 is an apocalyptic number.

228347858 is a deficient number, since it is larger than the sum of its proper divisors (114173932).

228347858 is a wasteful number, since it uses less digits than its factorization.

228347858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114173931.

The product of its digits is 860160, while the sum is 47.

The square root of 228347858 is about 15111.1832097953. The cubic root of 228347858 is about 611.2220043412. Note that the first 3 decimals are identical.

The spelling of 228347858 in words is "two hundred twenty-eight million, three hundred forty-seven thousand, eight hundred fifty-eight".