1799868 has 36 divisors (see below), whose sum is σ = 4886952. Its totient is φ = 514080.

The previous prime is 1799867. The next prime is 1799881. The reversal of 1799868 is 8689971.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 943 + ... + 2118.

2^1799868 is an apocalyptic number.

It is an amenable number.

1799868 is an abundant number, since it is smaller than the sum of its proper divisors (3087084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1799868 is a wasteful number, since it uses less digits than its factorization.

1799868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3073 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 1799868 is about 1341.5915921025. The cubic root of 1799868 is about 121.6410663178.

The spelling of 1799868 in words is "one million, seven hundred ninety-nine thousand, eight hundred sixty-eight".