228143544 has 16 divisors (see below), whose sum is σ = 570358920. Its totient is φ = 76047840.

The previous prime is 228143537. The next prime is 228143549. The reversal of 228143544 is 445341822.

228143544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228143549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4752967 + ... + 4753014.

Almost surely, 2^228143544 is an apocalyptic number.

228143544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228143544 is an abundant number, since it is smaller than the sum of its proper divisors (342215376).

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

228143544 is a wasteful number, since it uses less digits than its factorization.

228143544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505990 (or 9505986 counting only the distinct ones).

The product of its digits is 30720, while the sum is 33.

The square root of 228143544 is about 15104.4213394622. The cubic root of 228143544 is about 611.0396532008.

The spelling of 228143544 in words is "two hundred twenty-eight million, one hundred forty-three thousand, five hundred forty-four".