1868942 has 8 divisors (see below), whose sum is σ = 2812536. Its totient is φ = 931432.

The previous prime is 1868917. The next prime is 1868947. The reversal of 1868942 is 2498681.

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

It is a junction number, because it is equal to n+sod(n) for n = 1868896 and 1868905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868947) 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, 653 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (351567).

2^1868942 is an apocalyptic number.

1868942 is a deficient number, since it is larger than the sum of its proper divisors (943594).

1868942 is a wasteful number, since it uses less digits than its factorization.

1868942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042.

The product of its digits is 27648, while the sum is 38.

The square root of 1868942 is about 1367.0925352733. The cubic root of 1868942 is about 123.1776576536.

The spelling of 1868942 in words is "one million, eight hundred sixty-eight thousand, nine hundred forty-two".