1111144444 has 48 divisors (see below), whose sum is σ = 2088124416. Its totient is φ = 516067200.

The previous prime is 1111144427. The next prime is 1111144451. The reversal of 1111144444 is 4444411111.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021669 + ... + 1022755.

It is an arithmetic number, because the mean of its divisors is an integer number (43502592).

Almost surely, 2^1111144444 is an apocalyptic number.

It is an amenable number.

1111144444 is a deficient number, since it is larger than the sum of its proper divisors (976979972).

1111144444 is a wasteful number, since it uses less digits than its factorization.

1111144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 1111144444 is about 33333.8333229168. The cubic root of 1111144444 is about 1035.7545258513.

Adding to 1111144444 its reverse (4444411111), we get a palindrome (5555555555).

It can be divided in two parts, 11111 and 44444, that multiplied together give a square (493817284 = 22222²).

The spelling of 1111144444 in words is "one billion, one hundred eleven million, one hundred forty-four thousand, four hundred forty-four".