228998736 has 120 divisors (see below), whose sum is σ = 677504256. Its totient is φ = 72092160.

The previous prime is 228998723. The next prime is 228998797. The reversal of 228998736 is 637899822.

It is a happy number.

228998736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191356 + ... + 192548.

Almost surely, 2^228998736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228998736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338752128).

228998736 is an abundant number, since it is smaller than the sum of its proper divisors (448505520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228998736 is a wasteful number, since it uses less digits than its factorization.

228998736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1272 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 228998736 is about 15132.7041866284. The cubic root of 228998736 is about 611.8021916147.

It can be divided in two parts, 2289 and 98736, that added together give a triangular number (101025 = T₄₄₉).

The spelling of 228998736 in words is "two hundred twenty-eight million, nine hundred ninety-eight thousand, seven hundred thirty-six".