1138786 has 16 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 503280.

The previous prime is 1138777. The next prime is 1138793. The reversal of 1138786 is 6878311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115 + ... + 1513.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^1138786 is an apocalyptic number.

1138786 is a deficient number, since it is larger than the sum of its proper divisors (776414).

1138786 is a wasteful number, since it uses less digits than its factorization.

1138786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449.

The product of its digits is 8064, while the sum is 34.

The square root of 1138786 is about 1067.1391661822. The cubic root of 1138786 is about 104.4272977066.

The spelling of 1138786 in words is "one million, one hundred thirty-eight thousand, seven hundred eighty-six".