1940300837 has 4 divisors (see below), whose sum is σ = 1962102060. Its totient is φ = 1918499616.

The previous prime is 1940300833. The next prime is 1940300839. The reversal of 1940300837 is 7380030491.

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 144744961 + 1795555876 = 12031^2 + 42374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940300837 - 2² = 1940300833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1940300797 and 1940300806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940300833) 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, 10900478 + ... + 10900655.

It is an arithmetic number, because the mean of its divisors is an integer number (490525515).

Almost surely, 2^1940300837 is an apocalyptic number.

It is an amenable number.

1940300837 is a deficient number, since it is larger than the sum of its proper divisors (21801223).

1940300837 is an equidigital number, since it uses as much as digits as its factorization.

1940300837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21801222.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1940300837 is about 44048.8460348282. The cubic root of 1940300837 is about 1247.2581688468.

The spelling of 1940300837 in words is "one billion, nine hundred forty million, three hundred thousand, eight hundred thirty-seven".