228946145844 has 24 divisors (see below), whose sum is σ = 575300572000. Its totient is φ = 70444967904.

The previous prime is 228946145843. The next prime is 228946145849. The reversal of 228946145844 is 448541649822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228946145843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733801594 + ... + 733801905.

Almost surely, 2^228946145844 is an apocalyptic number.

It is an amenable number.

228946145844 is an abundant number, since it is smaller than the sum of its proper divisors (346354426156).

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

228946145844 is a wasteful number, since it uses less digits than its factorization.

228946145844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467603519 (or 1467603517 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 57.

The spelling of 228946145844 in words is "two hundred twenty-eight billion, nine hundred forty-six million, one hundred forty-five thousand, eight hundred forty-four".