228285260 has 48 divisors (see below), whose sum is σ = 551873280. Its totient is φ = 77699520.

The previous prime is 228285259. The next prime is 228285283. The reversal of 228285260 is 62582822.

It is a super-2 number, since 2×228285260² = 104228319866535200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 228285260.

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, 13595 + ... + 25325.

It is an arithmetic number, because the mean of its divisors is an integer number (11497360).

Almost surely, 2^228285260 is an apocalyptic number.

228285260 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 228285260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275936640).

228285260 is an abundant number, since it is smaller than the sum of its proper divisors (323588020).

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

228285260 is a wasteful number, since it uses less digits than its factorization.

228285260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11886 (or 11884 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 228285260 is about 15109.1118203553. Note that the first 3 decimals coincide. The cubic root of 228285260 is about 611.1661469136.

The spelling of 228285260 in words is "two hundred twenty-eight million, two hundred eighty-five thousand, two hundred sixty".