1109742 has 8 divisors (see below), whose sum is σ = 2219496. Its totient is φ = 369912.

The previous prime is 1109737. The next prime is 1109749. The reversal of 1109742 is 2479011.

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

1109742 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92473 + ... + 92484.

It is an arithmetic number, because the mean of its divisors is an integer number (277437).

2^1109742 is an apocalyptic number.

1109742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1109742 is a wasteful number, since it uses less digits than its factorization.

1109742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184962.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1109742 is about 1053.4429267882. The cubic root of 1109742 is about 103.5318579145.

The spelling of 1109742 in words is "one million, one hundred nine thousand, seven hundred forty-two".