1138494766 has 8 divisors (see below), whose sum is σ = 1723702680. Its totient is φ = 563927208.

The previous prime is 1138494751. The next prime is 1138494767. The reversal of 1138494766 is 6674948311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138494767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659821 + ... + 2660248.

It is an arithmetic number, because the mean of its divisors is an integer number (215462835).

Almost surely, 2^1138494766 is an apocalyptic number.

1138494766 is a deficient number, since it is larger than the sum of its proper divisors (585207914).

1138494766 is a wasteful number, since it uses less digits than its factorization.

1138494766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320178.

The product of its digits is 870912, while the sum is 49.

The square root of 1138494766 is about 33741.5880776231. The cubic root of 1138494766 is about 1044.1839484203.

The spelling of 1138494766 in words is "one billion, one hundred thirty-eight million, four hundred ninety-four thousand, seven hundred sixty-six".