445538241 has 6 divisors (see below), whose sum is σ = 643555250. Its totient is φ = 297025488.

The previous prime is 445538237. The next prime is 445538243. The reversal of 445538241 is 142835544.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 445041216 + 497025 = 21096^2 + 705^2 .

It is not a de Polignac number, because 445538241 - 2² = 445538237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445538196 and 445538205.

It is not an unprimeable number, because it can be changed into a prime (445538243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24752116 + ... + 24752133.

Almost surely, 2^445538241 is an apocalyptic number.

It is an amenable number.

445538241 is a deficient number, since it is larger than the sum of its proper divisors (198017009).

445538241 is a wasteful number, since it uses less digits than its factorization.

445538241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49504255 (or 49504252 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 445538241 is about 21107.7767896100. The cubic root of 445538241 is about 763.7683577456.

The spelling of 445538241 in words is "four hundred forty-five million, five hundred thirty-eight thousand, two hundred forty-one".