1140880694 has 4 divisors (see below), whose sum is σ = 1711321044. Its totient is φ = 570440346.

The previous prime is 1140880589. The next prime is 1140880717. The reversal of 1140880694 is 4960880411.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285220172 + ... + 285220175.

It is an arithmetic number, because the mean of its divisors is an integer number (427830261).

Almost surely, 2^1140880694 is an apocalyptic number.

1140880694 is a deficient number, since it is larger than the sum of its proper divisors (570440350).

1140880694 is an equidigital number, since it uses as much as digits as its factorization.

1140880694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570440349.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1140880694 is about 33776.9254669515. The cubic root of 1140880694 is about 1044.9128668297.

The spelling of 1140880694 in words is "one billion, one hundred forty million, eight hundred eighty thousand, six hundred ninety-four".