1940709 has 8 divisors (see below), whose sum is σ = 2676960. Its totient is φ = 1249136.

The previous prime is 1940699. The next prime is 1940711. The reversal of 1940709 is 9070491.

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

It is a cyclic number.

It is not a de Polignac number, because 1940709 - 2⁸ = 1940453 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940749) 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, 11067 + ... + 11240.

It is an arithmetic number, because the mean of its divisors is an integer number (334620).

2^1940709 is an apocalyptic number.

It is an amenable number.

1940709 is a deficient number, since it is larger than the sum of its proper divisors (736251).

1940709 is a wasteful number, since it uses less digits than its factorization.

1940709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22339.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1940709 is about 1393.0933206358. The cubic root of 1940709 is about 124.7345620740.

The spelling of 1940709 in words is "one million, nine hundred forty thousand, seven hundred nine".