1144121040 has 120 divisors (see below), whose sum is σ = 3878510688. Its totient is φ = 302227200.

The previous prime is 1144121023. The next prime is 1144121071. The reversal of 1144121040 is 401214411.

1144121040 is a `hidden beast` number, since 11 + 441 + 210 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69615 + ... + 84465.

Almost surely, 2^1144121040 is an apocalyptic number.

1144121040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144121040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1939255344).

1144121040 is an abundant number, since it is smaller than the sum of its proper divisors (2734389648).

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

1144121040 is a wasteful number, since it uses less digits than its factorization.

1144121040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14977 (or 14968 counting only the distinct ones).

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

The square root of 1144121040 is about 33824.8583145591. The cubic root of 1144121040 is about 1045.9011906610.

Adding to 1144121040 its reverse (401214411), we get a palindrome (1545335451).

The spelling of 1144121040 in words is "one billion, one hundred forty-four million, one hundred twenty-one thousand, forty".