1669941 has 24 divisors (see below), whose sum is σ = 2970240. Its totient is φ = 880416.

The previous prime is 1669937. The next prime is 1669951. The reversal of 1669941 is 1499661.

It is not a de Polignac number, because 1669941 - 2² = 1669937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1669896 and 1669905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669931) 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 23 ways as a sum of consecutive naturals, for example, 201 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (123760).

2^1669941 is an apocalyptic number.

It is an amenable number.

1669941 is a deficient number, since it is larger than the sum of its proper divisors (1300299).

1669941 is a wasteful number, since it uses less digits than its factorization.

1669941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065 (or 2062 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 1669941 is about 1292.2619703450. The cubic root of 1669941 is about 118.6407023880.

The spelling of 1669941 in words is "one million, six hundred sixty-nine thousand, nine hundred forty-one".