228450222 has 192 divisors, whose sum is σ = 687697920. Its totient is φ = 52876800.

The previous prime is 228450217. The next prime is 228450241. The reversal of 228450222 is 222054822.

228450222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 558354 + ... + 558762.

It is an arithmetic number, because the mean of its divisors is an integer number (3581760).

Almost surely, 2^228450222 is an apocalyptic number.

228450222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 228450222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343848960).

228450222 is an abundant number, since it is smaller than the sum of its proper divisors (459247698).

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

228450222 is a wasteful number, since it uses less digits than its factorization.

228450222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 228450222 is about 15114.5698582527. The cubic root of 228450222 is about 611.3133237619.

The spelling of 228450222 in words is "two hundred twenty-eight million, four hundred fifty thousand, two hundred twenty-two".