1128244426 has 4 divisors (see below), whose sum is σ = 1692366642. Its totient is φ = 564122212.

The previous prime is 1128244421. The next prime is 1128244459. The reversal of 1128244426 is 6244428211.

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., 1059437401 + 68807025 = 32549^2 + 8295^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1128244391 and 1128244400.

It is not an unprimeable number, because it can be changed into a prime (1128244421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282061105 + ... + 282061108.

Almost surely, 2^1128244426 is an apocalyptic number.

1128244426 is a deficient number, since it is larger than the sum of its proper divisors (564122216).

1128244426 is an equidigital number, since it uses as much as digits as its factorization.

1128244426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564122215.

The product of its digits is 24576, while the sum is 34.

The square root of 1128244426 is about 33589.3498895111. The cubic root of 1128244426 is about 1041.0407560935.

The spelling of 1128244426 in words is "one billion, one hundred twenty-eight million, two hundred forty-four thousand, four hundred twenty-six".