1111244004 has 144 divisors (see below), whose sum is σ = 3130493184. Its totient is φ = 330220800.

The previous prime is 1111244003. The next prime is 1111244009. The reversal of 1111244004 is 4004421111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1111244003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1760769 + ... + 1761399.

It is an arithmetic number, because the mean of its divisors is an integer number (21739536).

Almost surely, 2^1111244004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111244004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565246592).

1111244004 is an abundant number, since it is smaller than the sum of its proper divisors (2019249180).

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

1111244004 is a wasteful number, since it uses less digits than its factorization.

1111244004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1111244004 is about 33335.3266670660. The cubic root of 1111244004 is about 1035.7854599156.

Adding to 1111244004 its reverse (4004421111), we get a palindrome (5115665115).

The spelling of 1111244004 in words is "one billion, one hundred eleven million, two hundred forty-four thousand, four".