228364444 has 96 divisors (see below), whose sum is σ = 530127360. Its totient is φ = 83462400.

The previous prime is 228364427. The next prime is 228364453. The reversal of 228364444 is 444463822.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330139 + ... + 330829.

It is an arithmetic number, because the mean of its divisors is an integer number (5522160).

Almost surely, 2^228364444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228364444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265063680).

228364444 is an abundant number, since it is smaller than the sum of its proper divisors (301762916).

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

228364444 is a wasteful number, since it uses less digits than its factorization.

228364444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 777 counting only the distinct ones).

The product of its digits is 147456, while the sum is 37.

The square root of 228364444 is about 15111.7319986823. The cubic root of 228364444 is about 611.2368026447.

The spelling of 228364444 in words is "two hundred twenty-eight million, three hundred sixty-four thousand, four hundred forty-four".