445456441 has 4 divisors (see below), whose sum is σ = 445522000. Its totient is φ = 445390884.

The previous prime is 445456421. The next prime is 445456471. The reversal of 445456441 is 144654544.

It is a happy number.

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 445456441 - 2¹¹ = 445454393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445456441.

It is not an unprimeable number, because it can be changed into a prime (445456421) 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, 21231 + ... + 36628.

It is an arithmetic number, because the mean of its divisors is an integer number (111380500).

Almost surely, 2^445456441 is an apocalyptic number.

It is an amenable number.

445456441 is a deficient number, since it is larger than the sum of its proper divisors (65559).

445456441 is an equidigital number, since it uses as much as digits as its factorization.

445456441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65558.

The product of its digits is 153600, while the sum is 37.

The square root of 445456441 is about 21105.8390262032. The cubic root of 445456441 is about 763.7216127304.

The spelling of 445456441 in words is "four hundred forty-five million, four hundred fifty-six thousand, four hundred forty-one".