1111244040 has 96 divisors (see below), whose sum is σ = 3736114200. Its totient is φ = 286110720.

The previous prime is 1111244039. The next prime is 1111244041. The reversal of 1111244040 is 404421111.

It is an interprime number because it is at equal distance from previous prime (1111244039) and next prime (1111244041).

It can be written as a sum of positive squares in 4 ways, for example, as 536107716 + 575136324 = 23154^2 + 23982^2 .

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 (1111244041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42781 + ... + 63660.

Almost surely, 2^1111244040 is an apocalyptic number.

1111244040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111244040 is an abundant number, since it is smaller than the sum of its proper divisors (2624870160).

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

1111244040 is a wasteful number, since it uses less digits than its factorization.

1111244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106487 (or 106480 counting only the distinct ones).

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

The square root of 1111244040 is about 33335.3272070337. The cubic root of 1111244040 is about 1035.7854711007.

Adding to 1111244040 its reverse (404421111), we get a palindrome (1515665151).

The spelling of 1111244040 in words is "one billion, one hundred eleven million, two hundred forty-four thousand, forty".