228515180 has 12 divisors (see below), whose sum is σ = 479881920. Its totient is φ = 91406064.

The previous prime is 228515179. The next prime is 228515197. The reversal of 228515180 is 81515822.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5712860 + ... + 5712899.

It is an arithmetic number, because the mean of its divisors is an integer number (39990160).

Almost surely, 2^228515180 is an apocalyptic number.

228515180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228515180 is an abundant number, since it is smaller than the sum of its proper divisors (251366740).

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

228515180 is a wasteful number, since it uses less digits than its factorization.

228515180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11425768 (or 11425766 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 228515180 is about 15116.7185592641. The cubic root of 228515180 is about 611.3712589617.

The spelling of 228515180 in words is "two hundred twenty-eight million, five hundred fifteen thousand, one hundred eighty".