1940917 has 8 divisors (see below), whose sum is σ = 2139552. Its totient is φ = 1746000.

The previous prime is 1940903. The next prime is 1940929. The reversal of 1940917 is 7190491.

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 1940917 - 2¹⁹ = 1416629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940957) 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, 238 + ... + 1984.

It is an arithmetic number, because the mean of its divisors is an integer number (267444).

2^1940917 is an apocalyptic number.

It is an amenable number.

1940917 is a deficient number, since it is larger than the sum of its proper divisors (198635).

1940917 is a wasteful number, since it uses less digits than its factorization.

1940917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 1940917 is about 1393.1679726436. The cubic root of 1940917 is about 124.7390181537.

The spelling of 1940917 in words is "one million, nine hundred forty thousand, nine hundred seventeen".