1995844 has 6 divisors (see below), whose sum is σ = 3492734. Its totient is φ = 997920.

The previous prime is 1995841. The next prime is 1995857. The reversal of 1995844 is 4485991.

1995844 = T₁₁₅₂ + T₁₁₅₃ + T₁₁₅₄.

It can be written as a sum of positive squares in only one way, i.e., 1988100 + 7744 = 1410^2 + 88^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1995797 and 1995806.

It is not an unprimeable number, because it can be changed into a prime (1995841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249477 + ... + 249484.

2^1995844 is an apocalyptic number.

1995844 is the 1154-th centered triangular number.

It is an amenable number.

1995844 is a deficient number, since it is larger than the sum of its proper divisors (1496890).

1995844 is a wasteful number, since it uses less digits than its factorization.

1995844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498965 (or 498963 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 1995844 is about 1412.7434303510. The cubic root of 1995844 is about 125.9047739388.

It can be divided in two parts, 19958 and 44, that added together give a palindrome (20002).

The spelling of 1995844 in words is "one million, nine hundred ninety-five thousand, eight hundred forty-four".