228038328 has 80 divisors (see below), whose sum is σ = 729978480. Its totient is φ = 65152512.

The previous prime is 228038309. The next prime is 228038389. The reversal of 228038328 is 823830822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 228038292 and 228038301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20601 + ... + 29672.

It is an arithmetic number, because the mean of its divisors is an integer number (9124731).

Almost surely, 2^228038328 is an apocalyptic number.

228038328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228038328 is an abundant number, since it is smaller than the sum of its proper divisors (501940152).

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

228038328 is a wasteful number, since it uses less digits than its factorization.

228038328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50298 (or 50285 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 228038328 is about 15100.9379841121. The cubic root of 228038328 is about 610.9457049890.

The spelling of 228038328 in words is "two hundred twenty-eight million, thirty-eight thousand, three hundred twenty-eight".