1940093 has 4 divisors (see below), whose sum is σ = 1947900. Its totient is φ = 1932288.

The previous prime is 1940087. The next prime is 1940123. The reversal of 1940093 is 3900491.

It is a happy number.

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 1800964 + 139129 = 1342^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940093 - 2⁸ = 1939837 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 (1940053) 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, 3518 + ... + 4031.

It is an arithmetic number, because the mean of its divisors is an integer number (486975).

2^1940093 is an apocalyptic number.

It is an amenable number.

1940093 is a deficient number, since it is larger than the sum of its proper divisors (7807).

1940093 is an equidigital number, since it uses as much as digits as its factorization.

1940093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1940093 is about 1392.8722123727. The cubic root of 1940093 is about 124.7213633545.

The spelling of 1940093 in words is "one million, nine hundred forty thousand, ninety-three".