1865942 has 16 divisors (see below), whose sum is σ = 3086160. Its totient is φ = 840672.

The previous prime is 1865939. The next prime is 1865957. The reversal of 1865942 is 2495681.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284 + ... + 1952.

It is an arithmetic number, because the mean of its divisors is an integer number (192885).

2^1865942 is an apocalyptic number.

1865942 is a deficient number, since it is larger than the sum of its proper divisors (1220218).

1865942 is a wasteful number, since it uses less digits than its factorization.

1865942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its digits is 17280, while the sum is 35.

The square root of 1865942 is about 1365.9948755394. The cubic root of 1865942 is about 123.1117146633. Note that the first 3 decimals are identical.

The spelling of 1865942 in words is "one million, eight hundred sixty-five thousand, nine hundred forty-two".