1940687 has 16 divisors (see below), whose sum is σ = 2334720. Its totient is φ = 1578528.

The previous prime is 1940683. The next prime is 1940699. The reversal of 1940687 is 7860491.

It is not a de Polignac number, because 1940687 - 2² = 1940683 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 (1940683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15218 + ... + 15344.

It is an arithmetic number, because the mean of its divisors is an integer number (145920).

2^1940687 is an apocalyptic number.

1940687 is a deficient number, since it is larger than the sum of its proper divisors (394033).

1940687 is a wasteful number, since it uses less digits than its factorization.

1940687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1940687 is about 1393.0854245164. The cubic root of 1940687 is about 124.7340907392.

The spelling of 1940687 in words is "one million, nine hundred forty thousand, six hundred eighty-seven".