1140768381 has 16 divisors (see below), whose sum is σ = 1554017600. Its totient is φ = 744145920.

The previous prime is 1140768367. The next prime is 1140768451. The reversal of 1140768381 is 1838670411.

It is not a de Polignac number, because 1140768381 - 2¹³ = 1140760189 is a prime.

It is a super-2 number, since 2×1140768381² = 2602704998178722322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140768301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19170 + ... + 51468.

It is an arithmetic number, because the mean of its divisors is an integer number (97126100).

Almost surely, 2^1140768381 is an apocalyptic number.

It is an amenable number.

1140768381 is a deficient number, since it is larger than the sum of its proper divisors (413249219).

1140768381 is a wasteful number, since it uses less digits than its factorization.

1140768381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32556.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1140768381 is about 33775.2628561200. The cubic root of 1140768381 is about 1044.8785771940.

The spelling of 1140768381 in words is "one billion, one hundred forty million, seven hundred sixty-eight thousand, three hundred eighty-one".