1140402436 has 12 divisors (see below), whose sum is σ = 2003657040. Its totient is φ = 567929000.

The previous prime is 1140402433. The next prime is 1140402437. The reversal of 1140402436 is 6342040411.

It is a self number, because there is not a number n which added to its sum of digits gives 1140402436.

It is not an unprimeable number, because it can be changed into a prime (1140402433) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 566926 + ... + 568933.

It is an arithmetic number, because the mean of its divisors is an integer number (166971420).

Almost surely, 2^1140402436 is an apocalyptic number.

It is an amenable number.

1140402436 is a deficient number, since it is larger than the sum of its proper divisors (863254604).

1140402436 is a wasteful number, since it uses less digits than its factorization.

1140402436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136114 (or 1136112 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1140402436 is about 33769.8450692330. The cubic root of 1140402436 is about 1044.7668370164.

Adding to 1140402436 its reverse (6342040411), we get a palindrome (7482442847).

The spelling of 1140402436 in words is "one billion, one hundred forty million, four hundred two thousand, four hundred thirty-six".