1995742 has 8 divisors (see below), whose sum is σ = 3421296. Its totient is φ = 855312.

The previous prime is 1995727. The next prime is 1995769. The reversal of 1995742 is 2475991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1995742² = 7965972261128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71263 + ... + 71290.

It is an arithmetic number, because the mean of its divisors is an integer number (427662).

2^1995742 is an apocalyptic number.

1995742 is a deficient number, since it is larger than the sum of its proper divisors (1425554).

1995742 is a wasteful number, since it uses less digits than its factorization.

1995742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142562.

The product of its digits is 22680, while the sum is 37.

The square root of 1995742 is about 1412.7073299166. The cubic root of 1995742 is about 125.9026290642.

Subtracting 1995742 from its reverse (2475991), we obtain a square (480249 = 693²).

The spelling of 1995742 in words is "one million, nine hundred ninety-five thousand, seven hundred forty-two".