445605441 has 4 divisors (see below), whose sum is σ = 594140592. Its totient is φ = 297070292.

The previous prime is 445605437. The next prime is 445605451. The reversal of 445605441 is 144506544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445605441 - 2² = 445605437 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445605401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74267571 + ... + 74267576.

It is an arithmetic number, because the mean of its divisors is an integer number (148535148).

Almost surely, 2^445605441 is an apocalyptic number.

It is an amenable number.

445605441 is a deficient number, since it is larger than the sum of its proper divisors (148535151).

445605441 is a wasteful number, since it uses less digits than its factorization.

445605441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148535150.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 445605441 is about 21109.3685599546. The cubic root of 445605441 is about 763.8067552378.

The spelling of 445605441 in words is "four hundred forty-five million, six hundred five thousand, four hundred forty-one".