1868842 has 8 divisors (see below), whose sum is σ = 2925216. Its totient is φ = 893772.

The previous prime is 1868837. The next prime is 1868843. The reversal of 1868842 is 2488681.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1868843) 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, 20268 + ... + 20359.

It is an arithmetic number, because the mean of its divisors is an integer number (365652).

2^1868842 is an apocalyptic number.

1868842 is a deficient number, since it is larger than the sum of its proper divisors (1056374).

1868842 is a wasteful number, since it uses less digits than its factorization.

1868842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40652.

The product of its digits is 24576, while the sum is 37.

The square root of 1868842 is about 1367.0559608151. The cubic root of 1868842 is about 123.1754606913.

The spelling of 1868842 in words is "one million, eight hundred sixty-eight thousand, eight hundred forty-two".