20040373 has 2 divisors, whose sum is σ = 20040374. Its totient is φ = 20040372.

The previous prime is 20040359. The next prime is 20040403. The reversal of 20040373 is 37304002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13373649 + 6666724 = 3657^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 20040373 - 2⁹ = 20039861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20040373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20040313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020186 + 10020187.

It is an arithmetic number, because the mean of its divisors is an integer number (10020187).

Almost surely, 2^20040373 is an apocalyptic number.

It is an amenable number.

20040373 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040373 is an equidigital number, since it uses as much as digits as its factorization.

20040373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20040373 is about 4476.6475179536. The cubic root of 20040373 is about 271.6242875333.

Adding to 20040373 its reverse (37304002), we get a palindrome (57344375).

The spelling of 20040373 in words is "twenty million, forty thousand, three hundred seventy-three".