1091942 has 8 divisors (see below), whose sum is σ = 1676136. Its totient is φ = 533232.

The previous prime is 1091939. The next prime is 1091957. The reversal of 1091942 is 2491901.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6263 + ... + 6434.

It is an arithmetic number, because the mean of its divisors is an integer number (209517).

2^1091942 is an apocalyptic number.

1091942 is a deficient number, since it is larger than the sum of its proper divisors (584194).

1091942 is a wasteful number, since it uses less digits than its factorization.

1091942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1091942 is about 1044.9602863267. The cubic root of 1091942 is about 102.9753294985.

The spelling of 1091942 in words is "one million, ninety-one thousand, nine hundred forty-two".