445480229 has 2 divisors, whose sum is σ = 445480230. Its totient is φ = 445480228.

The previous prime is 445480219. The next prime is 445480249. The reversal of 445480229 is 922084544.

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., 416568100 + 28912129 = 20410^2 + 5377^2 .

It is a cyclic number.

It is not a de Polignac number, because 445480229 - 2²⁰ = 444431653 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 445480192 and 445480201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445480219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222740114 + 222740115.

It is an arithmetic number, because the mean of its divisors is an integer number (222740115).

Almost surely, 2^445480229 is an apocalyptic number.

It is an amenable number.

445480229 is a deficient number, since it is larger than the sum of its proper divisors (1).

445480229 is an equidigital number, since it uses as much as digits as its factorization.

445480229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 445480229 is about 21106.4025594131. The cubic root of 445480229 is about 763.7352070909.

The spelling of 445480229 in words is "four hundred forty-five million, four hundred eighty thousand, two hundred twenty-nine".