228420000 has 360 divisors, whose sum is σ = 859674816. Its totient is φ = 59616000.

The previous prime is 228419987. The next prime is 228420011. The reversal of 228420000 is 24822.

228420000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4859977 + ... + 4860023.

Almost surely, 2^228420000 is an apocalyptic number.

228420000 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 228420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429837408).

228420000 is an abundant number, since it is smaller than the sum of its proper divisors (631254816).

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

228420000 is an frugal number, since it uses more digits than its factorization.

228420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 228420000 is about 15113.5700613720. The cubic root of 228420000 is about 611.2863654077.

Adding to 228420000 its reverse (24822), we get a palindrome (228444822).

The spelling of 228420000 in words is "two hundred twenty-eight million, four hundred twenty thousand".