1995992 has 8 divisors (see below), whose sum is σ = 3742500. Its totient is φ = 997992.

The previous prime is 1995991. The next prime is 1996013. The reversal of 1995992 is 2995991.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124742 + ... + 124757.

2^1995992 is an apocalyptic number.

It is an amenable number.

1995992 is a deficient number, since it is larger than the sum of its proper divisors (1746508).

1995992 is a wasteful number, since it uses less digits than its factorization.

1995992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249505 (or 249501 counting only the distinct ones).

The product of its digits is 65610, while the sum is 44.

The square root of 1995992 is about 1412.7958097333. The cubic root of 1995992 is about 125.9078859800.

Adding to 1995992 its product of digits (65610), we get a palindrome (2061602).

Subtracting 1995992 from its reverse (2995991), we obtain a palindrome (999999).

The spelling of 1995992 in words is "one million, nine hundred ninety-five thousand, nine hundred ninety-two".