1840942 has 8 divisors (see below), whose sum is σ = 2772216. Its totient is φ = 916872.

The previous prime is 1840939. The next prime is 1840957. The reversal of 1840942 is 2490481.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1840942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108 + ... + 2215.

It is an arithmetic number, because the mean of its divisors is an integer number (346527).

2^1840942 is an apocalyptic number.

1840942 is the 1108-th pentagonal number.

1840942 is a deficient number, since it is larger than the sum of its proper divisors (931274).

1840942 is a wasteful number, since it uses less digits than its factorization.

1840942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1840942 is about 1356.8131780020. The cubic root of 1840942 is about 122.5594214007.

The spelling of 1840942 in words is "one million, eight hundred forty thousand, nine hundred forty-two".