228186026 has 4 divisors (see below), whose sum is σ = 342279042. Its totient is φ = 114093012.

The previous prime is 228185989. The next prime is 228186031. The reversal of 228186026 is 620681822.

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., 215943025 + 12243001 = 14695^2 + 3499^2 .

It is a Curzon 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 as a sum of consecutive naturals, namely, 57046505 + ... + 57046508.

Almost surely, 2^228186026 is an apocalyptic number.

228186026 is a deficient number, since it is larger than the sum of its proper divisors (114093016).

228186026 is a wasteful number, since it uses less digits than its factorization.

228186026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114093015.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 228186026 is about 15105.8275509818. The cubic root of 228186026 is about 611.0775775343.

The spelling of 228186026 in words is "two hundred twenty-eight million, one hundred eighty-six thousand, twenty-six".