1109974389 has 8 divisors (see below), whose sum is σ = 1507889952. Its totient is φ = 726020880.

The previous prime is 1109974381. The next prime is 1109974409. The reversal of 1109974389 is 9834799011.

It is a happy number.

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

It is not a de Polignac number, because 1109974389 - 2³ = 1109974381 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109974381) 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, 3490327 + ... + 3490644.

It is an arithmetic number, because the mean of its divisors is an integer number (188486244).

Almost surely, 2^1109974389 is an apocalyptic number.

It is an amenable number.

1109974389 is a deficient number, since it is larger than the sum of its proper divisors (397915563).

1109974389 is an equidigital number, since it uses as much as digits as its factorization.

1109974389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981027.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 1109974389 is about 33316.2781384716. The cubic root of 1109974389 is about 1035.3908421443.

The spelling of 1109974389 in words is "one billion, one hundred nine million, nine hundred seventy-four thousand, three hundred eighty-nine".