1140396784 has 20 divisors (see below), whose sum is σ = 2210841880. Its totient is φ = 569856960.

The previous prime is 1140396773. The next prime is 1140396799. The reversal of 1140396784 is 4876930411.

It is a self number, because there is not a number n which added to its sum of digits gives 1140396784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7387 + ... + 48325.

It is an arithmetic number, because the mean of its divisors is an integer number (110542094).

Almost surely, 2^1140396784 is an apocalyptic number.

It is an amenable number.

1140396784 is a deficient number, since it is larger than the sum of its proper divisors (1070445096).

1140396784 is a wasteful number, since it uses less digits than its factorization.

1140396784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42688 (or 42682 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1140396784 is about 33769.7613850024. The cubic root of 1140396784 is about 1044.7651110082.

The spelling of 1140396784 in words is "one billion, one hundred forty million, three hundred ninety-six thousand, seven hundred eighty-four".