228243264 has 56 divisors (see below), whose sum is σ = 605381568. Its totient is φ = 75893760.

The previous prime is 228243247. The next prime is 228243271. The reversal of 228243264 is 462342822.

228243264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228243264² = 104189975122747392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 92284 + ... + 94724.

Almost surely, 2^228243264 is an apocalyptic number.

228243264 is a gapful number since it is divisible by the number (24) 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 228243264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302690784).

228243264 is an abundant number, since it is smaller than the sum of its proper divisors (377138304).

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

228243264 is a wasteful number, since it uses less digits than its factorization.

228243264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2933 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 228243264 is about 15107.7219990308. The cubic root of 228243264 is about 611.1286673328.

The spelling of 228243264 in words is "two hundred twenty-eight million, two hundred forty-three thousand, two hundred sixty-four".