1690041 has 8 divisors (see below), whose sum is σ = 2259520. Its totient is φ = 1123632.

The previous prime is 1690019. The next prime is 1690043. The reversal of 1690041 is 1400961.

1690041 is a nontrivial binomial coefficient, being equal to C(1839, 2).

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

It is not a de Polignac number, because 1690041 - 2⁵ = 1690009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1690043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (282440).

2^1690041 is an apocalyptic number.

1690041 is the 1838-th triangular number.

It is an amenable number.

1690041 is a deficient number, since it is larger than the sum of its proper divisors (569479).

1690041 is an equidigital number, since it uses as much as digits as its factorization.

1690041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1690041 is about 1300.0157691351. The cubic root of 1690041 is about 119.1148057599.

The spelling of 1690041 in words is "one million, six hundred ninety thousand, forty-one".