1140243764 has 12 divisors (see below), whose sum is σ = 2176829088. Its totient is φ = 518292600.

The previous prime is 1140243757. The next prime is 1140243773. The reversal of 1140243764 is 4673420411.

It is a self number, because there is not a number n which added to its sum of digits gives 1140243764.

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, 12957272 + ... + 12957359.

It is an arithmetic number, because the mean of its divisors is an integer number (181402424).

Almost surely, 2^1140243764 is an apocalyptic number.

It is an amenable number.

1140243764 is a deficient number, since it is larger than the sum of its proper divisors (1036585324).

1140243764 is a wasteful number, since it uses less digits than its factorization.

1140243764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25914646 (or 25914644 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 1140243764 is about 33767.4956726139. The cubic root of 1140243764 is about 1044.7183795808.

The spelling of 1140243764 in words is "one billion, one hundred forty million, two hundred forty-three thousand, seven hundred sixty-four".