1855042 has 24 divisors (see below), whose sum is σ = 3381696. Its totient is φ = 759528.

The previous prime is 1855039. The next prime is 1855093. The reversal of 1855042 is 2405581.

It is a junction number, because it is equal to n+sod(n) for n = 1854998 and 1855016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1843 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (140904).

2^1855042 is an apocalyptic number.

1855042 is a deficient number, since it is larger than the sum of its proper divisors (1526654).

1855042 is a wasteful number, since it uses less digits than its factorization.

1855042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1855042 is about 1361.9992657854. Note that the first 3 decimals coincide. The cubic root of 1855042 is about 122.8715251390.

The spelling of 1855042 in words is "one million, eight hundred fifty-five thousand, forty-two".