228445744 has 20 divisors (see below), whose sum is σ = 443052496. Its totient is φ = 114109632.

The previous prime is 228445717. The next prime is 228445747. The reversal of 228445744 is 447544822.

It is a junction number, because it is equal to n+sod(n) for n = 228445697 and 228445706.

It is not an unprimeable number, because it can be changed into a prime (228445747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10957 + ... + 24019.

Almost surely, 2^228445744 is an apocalyptic number.

It is an amenable number.

228445744 is a deficient number, since it is larger than the sum of its proper divisors (214606752).

228445744 is a wasteful number, since it uses less digits than its factorization.

228445744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14164 (or 14158 counting only the distinct ones).

The product of its digits is 286720, while the sum is 40.

The square root of 228445744 is about 15114.4217223154. The cubic root of 228445744 is about 611.3093294870.

The spelling of 228445744 in words is "two hundred twenty-eight million, four hundred forty-five thousand, seven hundred forty-four".