1140642304 has 80 divisors (see below), whose sum is σ = 2372410656. Its totient is φ = 547430400.

The previous prime is 1140642287. The next prime is 1140642311. The reversal of 1140642304 is 4032460411.

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 7 ways as a sum of consecutive naturals, for example, 1406059 + ... + 1406869.

Almost surely, 2^1140642304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140642304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186205328).

1140642304 is an abundant number, since it is smaller than the sum of its proper divisors (1231768352).

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

1140642304 is an frugal number, since it uses more digits than its factorization.

1140642304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 921 counting only the distinct ones).

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

The square root of 1140642304 is about 33773.3963942035. The cubic root of 1140642304 is about 1044.8400826694.

The spelling of 1140642304 in words is "one billion, one hundred forty million, six hundred forty-two thousand, three hundred four".