228143480 has 64 divisors (see below), whose sum is σ = 531468000. Its totient is φ = 88072704.

The previous prime is 228143459. The next prime is 228143483. The reversal of 228143480 is 84341822.

228143480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228143483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205166 + ... + 206274.

Almost surely, 2^228143480 is an apocalyptic number.

228143480 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 228143480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265734000).

228143480 is an abundant number, since it is smaller than the sum of its proper divisors (303324520).

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

228143480 is a wasteful number, since it uses less digits than its factorization.

228143480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 228143480 is about 15104.4192208770. The cubic root of 228143480 is about 611.0395960635.

The spelling of 228143480 in words is "two hundred twenty-eight million, one hundred forty-three thousand, four hundred eighty".