228941244981 has 48 divisors (see below), whose sum is σ = 353274255360. Its totient is φ = 142553134080.

The previous prime is 228941244953. The next prime is 228941245151. The reversal of 228941244981 is 189442149822.

228941244981 is a `hidden beast` number, since 2 + 2 + 89 + 41 + 2 + 449 + 81 = 666.

It is not a de Polignac number, because 228941244981 - 2²⁵ = 228907690549 is a prime.

It is a super-2 number, since 2×228941244981² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228941244911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29261236 + ... + 29269058.

It is an arithmetic number, because the mean of its divisors is an integer number (7359880320).

Almost surely, 2^228941244981 is an apocalyptic number.

It is an amenable number.

228941244981 is a deficient number, since it is larger than the sum of its proper divisors (124333010379).

228941244981 is a wasteful number, since it uses less digits than its factorization.

228941244981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11506 (or 11503 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 228941244981 in words is "two hundred twenty-eight billion, nine hundred forty-one million, two hundred forty-four thousand, nine hundred eighty-one".