1111444456 has 32 divisors (see below), whose sum is σ = 2176957440. Its totient is φ = 530975808.

The previous prime is 1111444447. The next prime is 1111444487. The reversal of 1111444456 is 6544441111.

It is a happy number.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197230 + ... + 202786.

It is an arithmetic number, because the mean of its divisors is an integer number (68029920).

Almost surely, 2^1111444456 is an apocalyptic number.

It is an amenable number.

1111444456 is a deficient number, since it is larger than the sum of its proper divisors (1065512984).

1111444456 is a wasteful number, since it uses less digits than its factorization.

1111444456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673 (or 6669 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 1111444456 is about 33338.3331316969. Note that the first 3 decimals coincide. The cubic root of 1111444456 is about 1035.8477363023.

Adding to 1111444456 its reverse (6544441111), we get a palindrome (7655885567).

It can be divided in two parts, 111144 and 4456, that added together give a square (115600 = 340²).

The spelling of 1111444456 in words is "one billion, one hundred eleven million, four hundred forty-four thousand, four hundred fifty-six".