228144522 has 16 divisors (see below), whose sum is σ = 483129792. Its totient is φ = 71574720.

The previous prime is 228144517. The next prime is 228144523. The reversal of 228144522 is 225441822.

228144522 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228144522.

It is not an unprimeable number, because it can be changed into a prime (228144523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118254 + ... + 1118457.

It is an arithmetic number, because the mean of its divisors is an integer number (30195612).

Almost surely, 2^228144522 is an apocalyptic number.

228144522 is an abundant number, since it is smaller than the sum of its proper divisors (254985270).

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

228144522 is a wasteful number, since it uses less digits than its factorization.

228144522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236733.

The product of its digits is 10240, while the sum is 30.

The square root of 228144522 is about 15104.4537140540. The cubic root of 228144522 is about 611.0405263294.

The spelling of 228144522 in words is "two hundred twenty-eight million, one hundred forty-four thousand, five hundred twenty-two".