445020293 has 2 divisors, whose sum is σ = 445020294. Its totient is φ = 445020292.

The previous prime is 445020281. The next prime is 445020343. The reversal of 445020293 is 392020544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425101924 + 19918369 = 20618^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 445020293 - 2¹⁰ = 445019269 is a prime.

It is a super-2 number, since 2×445020293² = 396086122363611698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445020253) 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, 222510146 + 222510147.

It is an arithmetic number, because the mean of its divisors is an integer number (222510147).

Almost surely, 2^445020293 is an apocalyptic number.

It is an amenable number.

445020293 is a deficient number, since it is larger than the sum of its proper divisors (1).

445020293 is an equidigital number, since it uses as much as digits as its factorization.

445020293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 445020293 is about 21095.5040944747. The cubic root of 445020293 is about 763.4722771469.

The spelling of 445020293 in words is "four hundred forty-five million, twenty thousand, two hundred ninety-three".