228994959 has 4 divisors (see below), whose sum is σ = 305326616. Its totient is φ = 152663304.

The previous prime is 228994901. The next prime is 228995003. The reversal of 228994959 is 959499822.

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

It is not a de Polignac number, because 228994959 - 2¹³ = 228986767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228994899 and 228994908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228994159) by changing a digit.

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, 38165824 + ... + 38165829.

It is an arithmetic number, because the mean of its divisors is an integer number (76331654).

Almost surely, 2^228994959 is an apocalyptic number.

228994959 is a deficient number, since it is larger than the sum of its proper divisors (76331657).

228994959 is an equidigital number, since it uses as much as digits as its factorization.

228994959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76331656.

The product of its digits is 4199040, while the sum is 57.

The square root of 228994959 is about 15132.5793901767. The cubic root of 228994959 is about 611.7988280014.

The spelling of 228994959 in words is "two hundred twenty-eight million, nine hundred ninety-four thousand, nine hundred fifty-nine".