228227580 has 144 divisors (see below), whose sum is σ = 816850944. Its totient is φ = 50474880.

The previous prime is 228227557. The next prime is 228227599. The reversal of 228227580 is 85722822.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36139 + ... + 41981.

It is an arithmetic number, because the mean of its divisors is an integer number (5672576).

Almost surely, 2^228227580 is an apocalyptic number.

228227580 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 228227580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408425472).

228227580 is an abundant number, since it is smaller than the sum of its proper divisors (588623364).

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

228227580 is a wasteful number, since it uses less digits than its factorization.

228227580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5891 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 228227580 is about 15107.2029178137. The cubic root of 228227580 is about 611.1146688743.

The spelling of 228227580 in words is "two hundred twenty-eight million, two hundred twenty-seven thousand, five hundred eighty".