1111044400 has 60 divisors (see below), whose sum is σ = 2672956152. Its totient is φ = 443806720.

The previous prime is 1111044397. The next prime is 1111044409. The reversal of 1111044400 is 44401111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1111044409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389379 + ... + 392221.

Almost surely, 2^1111044400 is an apocalyptic number.

1111044400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111044400 is an abundant number, since it is smaller than the sum of its proper divisors (1561911752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111044400 is a wasteful number, since it uses less digits than its factorization.

1111044400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1111044400 is about 33332.3326516462. The cubic root of 1111044400 is about 1035.7234395431.

Adding to 1111044400 its reverse (44401111), we get a palindrome (1155445511).

The spelling of 1111044400 in words is "one billion, one hundred eleven million, forty-four thousand, four hundred".