1100043228 has 24 divisors (see below), whose sum is σ = 2701861120. Its totient is φ = 347382000.

The previous prime is 1100043227. The next prime is 1100043233. The reversal of 1100043228 is 8223400011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100043223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412148 + ... + 2412603.

Almost surely, 2^1100043228 is an apocalyptic number.

It is an amenable number.

1100043228 is an abundant number, since it is smaller than the sum of its proper divisors (1601817892).

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

1100043228 is a wasteful number, since it uses less digits than its factorization.

1100043228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824777 (or 4824775 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1100043228 is about 33166.8995837718. The cubic root of 1100043228 is about 1032.2936375231.

Adding to 1100043228 its reverse (8223400011), we get a palindrome (9323443239).

The spelling of 1100043228 in words is "one billion, one hundred million, forty-three thousand, two hundred twenty-eight".