1100428226 has 4 divisors (see below), whose sum is σ = 1650642342. Its totient is φ = 550214112.

The previous prime is 1100428223. The next prime is 1100428253. The reversal of 1100428226 is 6228240011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1072497001 + 27931225 = 32749^2 + 5285^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1100428195 and 1100428204.

It is not an unprimeable number, because it can be changed into a prime (1100428223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275107055 + ... + 275107058.

Almost surely, 2^1100428226 is an apocalyptic number.

1100428226 is a deficient number, since it is larger than the sum of its proper divisors (550214116).

1100428226 is an equidigital number, since it uses as much as digits as its factorization.

1100428226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550214115.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1100428226 is about 33172.7030252284. The cubic root of 1100428226 is about 1032.4140523759.

Adding to 1100428226 its reverse (6228240011), we get a palindrome (7328668237).

The spelling of 1100428226 in words is "one billion, one hundred million, four hundred twenty-eight thousand, two hundred twenty-six".