228521360 has 40 divisors (see below), whose sum is σ = 559279680. Its totient is φ = 86596992.

The previous prime is 228521357. The next prime is 228521401. The reversal of 228521360 is 63125822.

It is a tau number, because it is divible by the number of its divisors (40).

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, 73652 + ... + 76691.

It is an arithmetic number, because the mean of its divisors is an integer number (13981992).

Almost surely, 2^228521360 is an apocalyptic number.

228521360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228521360 is an abundant number, since it is smaller than the sum of its proper divisors (330758320).

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

228521360 is a wasteful number, since it uses less digits than its factorization.

228521360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150375 (or 150369 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 228521360 is about 15116.9229673237. The cubic root of 228521360 is about 611.3767702518.

The spelling of 228521360 in words is "two hundred twenty-eight million, five hundred twenty-one thousand, three hundred sixty".