1807942 has 8 divisors (see below), whose sum is σ = 2728656. Its totient is φ = 898392.

The previous prime is 1807921. The next prime is 1807943. The reversal of 1807942 is 2497081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1807943) by changing a digit.

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, 2373 + ... + 3040.

It is an arithmetic number, because the mean of its divisors is an integer number (341082).

2^1807942 is an apocalyptic number.

1807942 is a deficient number, since it is larger than the sum of its proper divisors (920714).

1807942 is a wasteful number, since it uses less digits than its factorization.

1807942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1807942 is about 1344.5973374955. The cubic root of 1807942 is about 121.8226842743.

The spelling of 1807942 in words is "one million, eight hundred seven thousand, nine hundred forty-two".