228040000 has 70 divisors (see below), whose sum is σ = 565564274. Its totient is φ = 91200000.

The previous prime is 228039997. The next prime is 228040027. The reversal of 228040000 is 40822.

228040000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 49336576 + 178703424 = 7024^2 + 13368^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 37150 + ... + 42850.

Almost surely, 2^228040000 is an apocalyptic number.

228040000 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 228040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282782137).

228040000 is an abundant number, since it is smaller than the sum of its proper divisors (337524274).

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

228040000 is an frugal number, since it uses more digits than its factorization.

228040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5733 (or 5708 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 228040000 is about 15100.9933448101. The cubic root of 228040000 is about 610.9471981572.

Adding to 228040000 its reverse (40822), we get a palindrome (228080822).

The spelling of 228040000 in words is "two hundred twenty-eight million, forty thousand".