1940317 has 6 divisors (see below), whose sum is σ = 2001498. Its totient is φ = 1879632.

The previous prime is 1940293. The next prime is 1940327. The reversal of 1940317 is 7130491.

It can be written as a sum of positive squares in 3 ways, for example, as 1602756 + 337561 = 1266^2 + 581^2 .

It is not a de Polignac number, because 1940317 - 2¹¹ = 1938269 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1940291 and 1940300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8359 + ... + 8587.

It is an arithmetic number, because the mean of its divisors is an integer number (333583).

2^1940317 is an apocalyptic number.

It is an amenable number.

1940317 is a deficient number, since it is larger than the sum of its proper divisors (61181).

1940317 is an frugal number, since it uses more digits than its factorization.

1940317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1940317 is about 1392.9526194383. The cubic root of 1940317 is about 124.7261632120.

The spelling of 1940317 in words is "one million, nine hundred forty thousand, three hundred seventeen".