228815544 has 32 divisors (see below), whose sum is σ = 572760720. Its totient is φ = 76175616.

The previous prime is 228815527. The next prime is 228815567. The reversal of 228815544 is 445518822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14884 + ... + 26060.

Almost surely, 2^228815544 is an apocalyptic number.

228815544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228815544 is an abundant number, since it is smaller than the sum of its proper divisors (343945176).

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

228815544 is a wasteful number, since it uses less digits than its factorization.

228815544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12039 (or 12035 counting only the distinct ones).

The product of its digits is 102400, while the sum is 39.

The square root of 228815544 is about 15126.6501248624. The cubic root of 228815544 is about 611.6390070655.

The spelling of 228815544 in words is "two hundred twenty-eight million, eight hundred fifteen thousand, five hundred forty-four".