1115044426 has 4 divisors (see below), whose sum is σ = 1672566642. Its totient is φ = 557522212.

The previous prime is 1115044397. The next prime is 1115044429. The reversal of 1115044426 is 6244405111.

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., 936421201 + 178623225 = 30601^2 + 13365^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1115044394 and 1115044403.

It is not an unprimeable number, because it can be changed into a prime (1115044429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278761105 + ... + 278761108.

Almost surely, 2^1115044426 is an apocalyptic number.

1115044426 is a deficient number, since it is larger than the sum of its proper divisors (557522216).

1115044426 is an equidigital number, since it uses as much as digits as its factorization.

1115044426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557522215.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1115044426 is about 33392.2809343716. The cubic root of 1115044426 is about 1036.9649017121.

Adding to 1115044426 its reverse (6244405111), we get a palindrome (7359449537).

The spelling of 1115044426 in words is "one billion, one hundred fifteen million, forty-four thousand, four hundred twenty-six".