1140402036 has 24 divisors (see below), whose sum is σ = 2685353440. Its totient is φ = 376646112.

The previous prime is 1140402013. The next prime is 1140402037. The reversal of 1140402036 is 6302040411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140402037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434626 + ... + 437241.

Almost surely, 2^1140402036 is an apocalyptic number.

It is an amenable number.

1140402036 is an abundant number, since it is smaller than the sum of its proper divisors (1544951404).

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

1140402036 is a wasteful number, since it uses less digits than its factorization.

1140402036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871983 (or 871981 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1140402036 is about 33769.8391467890. The cubic root of 1140402036 is about 1044.7667148645.

Adding to 1140402036 its reverse (6302040411), we get a palindrome (7442442447).

The spelling of 1140402036 in words is "one billion, one hundred forty million, four hundred two thousand, thirty-six".