1868944 has 80 divisors (see below), whose sum is σ = 4749696. Its totient is φ = 691200.

The previous prime is 1868917. The next prime is 1868947. The reversal of 1868944 is 4498681.

It is a junction number, because it is equal to n+sod(n) for n = 1868897 and 1868906.

It is not an unprimeable number, because it can be changed into a prime (1868947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45564 + ... + 45604.

2^1868944 is an apocalyptic number.

1868944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1868944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2374848).

1868944 is an abundant number, since it is smaller than the sum of its proper divisors (2880752).

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

1868944 is a wasteful number, since it uses less digits than its factorization.

1868944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 98 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 1868944 is about 1367.0932667525. The cubic root of 1868944 is about 123.1777015921.

The spelling of 1868944 in words is "one million, eight hundred sixty-eight thousand, nine hundred forty-four".