228478080 has 128 divisors (see below), whose sum is σ = 734791680. Its totient is φ = 60383232.

The previous prime is 228478073. The next prime is 228478099. The reversal of 228478080 is 80874822.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243372 + ... + 244308.

It is an arithmetic number, because the mean of its divisors is an integer number (5740560).

Almost surely, 2^228478080 is an apocalyptic number.

228478080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228478080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367395840).

228478080 is an abundant number, since it is smaller than the sum of its proper divisors (506313600).

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

228478080 is a wasteful number, since it uses less digits than its factorization.

228478080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 228478080 is about 15115.4913912846. The cubic root of 228478080 is about 611.3381712965.

The spelling of 228478080 in words is "two hundred twenty-eight million, four hundred seventy-eight thousand, eighty".