228183880 has 32 divisors (see below), whose sum is σ = 516119040. Its totient is φ = 90792640.

The previous prime is 228183871. The next prime is 228183883. The reversal of 228183880 is 88381822.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (228183883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7294 + ... + 22573.

It is an arithmetic number, because the mean of its divisors is an integer number (16128720).

Almost surely, 2^228183880 is an apocalyptic number.

228183880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228183880 is an abundant number, since it is smaller than the sum of its proper divisors (287935160).

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

228183880 is a wasteful number, since it uses less digits than its factorization.

228183880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30069 (or 30065 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 228183880 is about 15105.7565186256. The cubic root of 228183880 is about 611.0756618800.

The spelling of 228183880 in words is "two hundred twenty-eight million, one hundred eighty-three thousand, eight hundred eighty".