1940801 has 4 divisors (see below), whose sum is σ = 1943892. Its totient is φ = 1937712.

The previous prime is 1940797. The next prime is 1940821. The reversal of 1940801 is 1080491.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1825201 + 115600 = 1351^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940801 - 2² = 1940797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (485973).

2^1940801 is an apocalyptic number.

It is an amenable number.

1940801 is a deficient number, since it is larger than the sum of its proper divisors (3091).

1940801 is an equidigital number, since it uses as much as digits as its factorization.

1940801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1940801 is about 1393.1263402865. The cubic root of 1940801 is about 124.7365330716.

The spelling of 1940801 in words is "one million, nine hundred forty thousand, eight hundred one".