228161576 has 32 divisors (see below), whose sum is σ = 452028000. Its totient is φ = 107666496.

The previous prime is 228161561. The next prime is 228161621. The reversal of 228161576 is 675161822.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39395 + ... + 44813.

It is an arithmetic number, because the mean of its divisors is an integer number (14125875).

Almost surely, 2^228161576 is an apocalyptic number.

It is an amenable number.

228161576 is a deficient number, since it is larger than the sum of its proper divisors (223866424).

228161576 is a wasteful number, since it uses less digits than its factorization.

228161576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721 (or 5717 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 228161576 is about 15105.0182389827. The cubic root of 228161576 is about 611.0557512190.

The spelling of 228161576 in words is "two hundred twenty-eight million, one hundred sixty-one thousand, five hundred seventy-six".