1138459786 has 16 divisors (see below), whose sum is σ = 1768068000. Its totient is φ = 549137008.

The previous prime is 1138459781. The next prime is 1138459793. The reversal of 1138459786 is 6879548311.

It is not an unprimeable number, because it can be changed into a prime (1138459781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66765 + ... + 82063.

It is an arithmetic number, because the mean of its divisors is an integer number (110504250).

Almost surely, 2^1138459786 is an apocalyptic number.

1138459786 is a deficient number, since it is larger than the sum of its proper divisors (629608214).

1138459786 is a wasteful number, since it uses less digits than its factorization.

1138459786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16613.

The product of its digits is 1451520, while the sum is 52.

The square root of 1138459786 is about 33741.0697222243. The cubic root of 1138459786 is about 1044.1732542038.

The spelling of 1138459786 in words is "one billion, one hundred thirty-eight million, four hundred fifty-nine thousand, seven hundred eighty-six".