1940911 has 4 divisors (see below), whose sum is σ = 2218192. Its totient is φ = 1663632.

The previous prime is 1940903. The next prime is 1940929. The reversal of 1940911 is 1190491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1940911 - 2³ = 1940903 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 (1940971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138630 + ... + 138643.

It is an arithmetic number, because the mean of its divisors is an integer number (554548).

2^1940911 is an apocalyptic number.

1940911 is a deficient number, since it is larger than the sum of its proper divisors (277281).

1940911 is an equidigital number, since it uses as much as digits as its factorization.

1940911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277280.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1940911 is about 1393.1658192764. The cubic root of 1940911 is about 124.7388896174.

The spelling of 1940911 in words is "one million, nine hundred forty thousand, nine hundred eleven".