1995642 has 24 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 604680.

The previous prime is 1995629. The next prime is 1995649. The reversal of 1995642 is 2465991.

1995642 is a `hidden beast` number, since 1 + 9 + 9 + 5 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1995597 and 1995606.

It is not an unprimeable number, because it can be changed into a prime (1995649) 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, 4842 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

2^1995642 is an apocalyptic number.

1995642 is an abundant number, since it is smaller than the sum of its proper divisors (2721798).

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

1995642 is a wasteful number, since it uses less digits than its factorization.

1995642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098 (or 10095 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1995642 is about 1412.6719364382. The cubic root of 1995642 is about 125.9005261749.

The spelling of 1995642 in words is "one million, nine hundred ninety-five thousand, six hundred forty-two".