228994779 has 8 divisors (see below), whose sum is σ = 328813072. Its totient is φ = 140919840.

The previous prime is 228994769. The next prime is 228994781. The reversal of 228994779 is 977499822.

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

It is not a de Polignac number, because 228994779 - 2⁵ = 228994747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228994769) 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 7 ways as a sum of consecutive naturals, for example, 2935792 + ... + 2935869.

It is an arithmetic number, because the mean of its divisors is an integer number (41101634).

Almost surely, 2^228994779 is an apocalyptic number.

228994779 is a deficient number, since it is larger than the sum of its proper divisors (99818293).

228994779 is a wasteful number, since it uses less digits than its factorization.

228994779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871677.

The product of its digits is 4572288, while the sum is 57.

The square root of 228994779 is about 15132.5734427426. The cubic root of 228994779 is about 611.7986677012.

The spelling of 228994779 in words is "two hundred twenty-eight million, nine hundred ninety-four thousand, seven hundred seventy-nine".