228646260 has 96 divisors (see below), whose sum is σ = 753217920. Its totient is φ = 57383424.

The previous prime is 228646241. The next prime is 228646261. The reversal of 228646260 is 62646822.

228646260 is a `hidden beast` number, since 2 + 2 + 8 + 646 + 2 + 6 + 0 = 666.

It is a super-2 number, since 2×228646260² = 104558224423975200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228646261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3274 + ... + 21633.

It is an arithmetic number, because the mean of its divisors is an integer number (7846020).

Almost surely, 2^228646260 is an apocalyptic number.

228646260 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 228646260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376608960).

228646260 is an abundant number, since it is smaller than the sum of its proper divisors (524571660).

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

228646260 is a wasteful number, since it uses less digits than its factorization.

228646260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24942 (or 24934 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 228646260 is about 15121.0535347244. The cubic root of 228646260 is about 611.4881340953.

The spelling of 228646260 in words is "two hundred twenty-eight million, six hundred forty-six thousand, two hundred sixty".