228561480 has 256 divisors, whose sum is σ = 889920000. Its totient is φ = 52157952.

The previous prime is 228561479. The next prime is 228561491. The reversal of 228561480 is 84165822.

228561480 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 (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 370132 + ... + 370748.

It is an arithmetic number, because the mean of its divisors is an integer number (3476250).

Almost surely, 2^228561480 is an apocalyptic number.

228561480 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 228561480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444960000).

228561480 is an abundant number, since it is smaller than the sum of its proper divisors (661358520).

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

228561480 is a wasteful number, since it uses less digits than its factorization.

228561480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 228561480 is about 15118.2498987151. The cubic root of 228561480 is about 611.4125466313.

It can be divided in two parts, 22856 and 1480, that added together give a square (24336 = 156²).

The spelling of 228561480 in words is "two hundred twenty-eight million, five hundred sixty-one thousand, four hundred eighty".