228263844 has 12 divisors (see below), whose sum is σ = 532615664. Its totient is φ = 76087944.

The previous prime is 228263839. The next prime is 228263857. The reversal of 228263844 is 448362822.

228263844 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 (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9510982 + ... + 9511005.

Almost surely, 2^228263844 is an apocalyptic number.

It is an amenable number.

228263844 is an abundant number, since it is smaller than the sum of its proper divisors (304351820).

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

228263844 is a wasteful number, since it uses less digits than its factorization.

228263844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19021994 (or 19021992 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The square root of 228263844 is about 15108.4030923192. The cubic root of 228263844 is about 611.1470346510.

The spelling of 228263844 in words is "two hundred twenty-eight million, two hundred sixty-three thousand, eight hundred forty-four".