1940590073 has 2 divisors, whose sum is σ = 1940590074. Its totient is φ = 1940590072.

The previous prime is 1940590033. The next prime is 1940590117. The reversal of 1940590073 is 3700950491.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1807695289 + 132894784 = 42517^2 + 11528^2 .

It is a cyclic number.

It is not a de Polignac number, because 1940590073 - 2¹⁴ = 1940573689 is a prime.

It is a super-2 number, since 2×1940590073² = 7531779662852290658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1940590033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970295036 + 970295037.

It is an arithmetic number, because the mean of its divisors is an integer number (970295037).

Almost surely, 2^1940590073 is an apocalyptic number.

It is an amenable number.

1940590073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940590073 is an equidigital number, since it uses as much as digits as its factorization.

1940590073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 1940590073 is about 44052.1290404902. The cubic root of 1940590073 is about 1247.3201410305.

The spelling of 1940590073 in words is "one billion, nine hundred forty million, five hundred ninety thousand, seventy-three".