1140072444 has 36 divisors (see below), whose sum is σ = 3293543344. Its totient is φ = 325734912.

The previous prime is 1140072421. The next prime is 1140072449. The reversal of 1140072444 is 4442700411.

1140072444 is a `hidden beast` number, since 11 + 400 + 7 + 244 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140072449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2261797 + ... + 2262300.

Almost surely, 2^1140072444 is an apocalyptic number.

1140072444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1140072444 is an abundant number, since it is smaller than the sum of its proper divisors (2153470900).

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

1140072444 is a wasteful number, since it uses less digits than its factorization.

1140072444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524114 (or 4524109 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 1140072444 is about 33764.9588182779. The cubic root of 1140072444 is about 1044.6660544778. Note that the first 3 decimals are identical.

Adding to 1140072444 its reverse (4442700411), we get a palindrome (5582772855).

The spelling of 1140072444 in words is "one billion, one hundred forty million, seventy-two thousand, four hundred forty-four".