1995042004 has 12 divisors (see below), whose sum is σ = 3696695604. Its totient is φ = 938843264.

The previous prime is 1995041999. The next prime is 1995042013. The reversal of 1995042004 is 4002405991.

It can be written as a sum of positive squares in 2 ways, for example, as 1100912400 + 894129604 = 33180^2 + 29902^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14669359 + ... + 14669494.

It is an arithmetic number, because the mean of its divisors is an integer number (308057967).

Almost surely, 2^1995042004 is an apocalyptic number.

It is an amenable number.

1995042004 is a deficient number, since it is larger than the sum of its proper divisors (1701653600).

1995042004 is a wasteful number, since it uses less digits than its factorization.

1995042004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29338874 (or 29338872 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1995042004 is about 44665.8930729030. The cubic root of 1995042004 is about 1258.8790744807.

Adding to 1995042004 its reverse (4002405991), we get a palindrome (5997447995).

The spelling of 1995042004 in words is "one billion, nine hundred ninety-five million, forty-two thousand, four".