228935880 has 96 divisors (see below), whose sum is σ = 747559800. Its totient is φ = 60761088.

The previous prime is 228935873. The next prime is 228935887. The reversal of 228935880 is 88539822.

It is an interprime number because it is at equal distance from previous prime (228935873) and next prime (228935887).

It can be written as a sum of positive squares in 4 ways, for example, as 195272676 + 33663204 = 13974^2 + 5802^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (228935887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81052 + ... + 83828.

Almost surely, 2^228935880 is an apocalyptic number.

228935880 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 228935880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373779900).

228935880 is an abundant number, since it is smaller than the sum of its proper divisors (518623920).

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

228935880 is a wasteful number, since it uses less digits than its factorization.

228935880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 228935880 is about 15130.6272176668. The cubic root of 228935880 is about 611.7462102904.

The spelling of 228935880 in words is "two hundred twenty-eight million, nine hundred thirty-five thousand, eight hundred eighty".