228866371 has 4 divisors (see below), whose sum is σ = 230189472. Its totient is φ = 227543272.

The previous prime is 228866329. The next prime is 228866377. The reversal of 228866371 is 173668822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173668822 = 2 ⋅86834411.

It is a cyclic number.

It is not a de Polignac number, because 228866371 - 2⁹ = 228865859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228866377) 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 3 ways as a sum of consecutive naturals, for example, 661291 + ... + 661636.

It is an arithmetic number, because the mean of its divisors is an integer number (57547368).

Almost surely, 2^228866371 is an apocalyptic number.

228866371 is a deficient number, since it is larger than the sum of its proper divisors (1323101).

228866371 is a wasteful number, since it uses less digits than its factorization.

228866371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323100.

The product of its digits is 193536, while the sum is 43.

The square root of 228866371 is about 15128.3300796882. The cubic root of 228866371 is about 611.6842916846.

The spelling of 228866371 in words is "two hundred twenty-eight million, eight hundred sixty-six thousand, three hundred seventy-one".