1990041 has 8 divisors (see below), whose sum is σ = 2793120. Its totient is φ = 1256832.

The previous prime is 1990039. The next prime is 1990069. The reversal of 1990041 is 1400991.

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

It is not a de Polignac number, because 1990041 - 2¹ = 1990039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1989993 and 1990020.

It is not an unprimeable number, because it can be changed into a prime (1990031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17400 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (349140).

2^1990041 is an apocalyptic number.

It is an amenable number.

1990041 is a deficient number, since it is larger than the sum of its proper divisors (803079).

1990041 is a wasteful number, since it uses less digits than its factorization.

1990041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34935.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1990041 is about 1410.6881299564. The cubic root of 1990041 is about 125.7826310163.

The spelling of 1990041 in words is "one million, nine hundred ninety thousand, forty-one".