1111444442 has 8 divisors (see below), whose sum is σ = 1682462100. Its totient is φ = 550623744.

The previous prime is 1111444429. The next prime is 1111444447. The reversal of 1111444442 is 2444441111.

It can be written as a sum of positive squares in 2 ways, for example, as 1102970521 + 8473921 = 33211^2 + 2911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1111444447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548967 + ... + 2549402.

Almost surely, 2^1111444442 is an apocalyptic number.

1111444442 is a deficient number, since it is larger than the sum of its proper divisors (571017658).

1111444442 is a wasteful number, since it uses less digits than its factorization.

1111444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098480.

The product of its digits is 2048, while the sum is 26.

The square root of 1111444442 is about 33338.3329217284. The cubic root of 1111444442 is about 1035.8477319530.

Adding to 1111444442 its reverse (2444441111), we get a palindrome (3555885553).

The spelling of 1111444442 in words is "one billion, one hundred eleven million, four hundred forty-four thousand, four hundred forty-two".