228489480 has 96 divisors (see below), whose sum is σ = 746703360. Its totient is φ = 60593280.

The previous prime is 228489473. The next prime is 228489491. The reversal of 228489480 is 84984822.

It is a happy number.

228489480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67099 + ... + 70421.

It is an arithmetic number, because the mean of its divisors is an integer number (7778160).

Almost surely, 2^228489480 is an apocalyptic number.

228489480 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 228489480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373351680).

228489480 is an abundant number, since it is smaller than the sum of its proper divisors (518213880).

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

228489480 is a wasteful number, since it uses less digits than its factorization.

228489480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531 (or 3524 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 228489480 is about 15115.8684831537. The cubic root of 228489480 is about 611.3483387770.

The spelling of 228489480 in words is "two hundred twenty-eight million, four hundred eighty-nine thousand, four hundred eighty".