445544405 has 8 divisors (see below), whose sum is σ = 534771072. Its totient is φ = 356357008.

The previous prime is 445544401. The next prime is 445544453. The reversal of 445544405 is 504445544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445544405 - 2² = 445544401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445544401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29384 + ... + 41886.

It is an arithmetic number, because the mean of its divisors is an integer number (66846384).

Almost surely, 2^445544405 is an apocalyptic number.

It is an amenable number.

445544405 is a deficient number, since it is larger than the sum of its proper divisors (89226667).

445544405 is a wasteful number, since it uses less digits than its factorization.

445544405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19635.

The product of its (nonzero) digits is 128000, while the sum is 35.

The square root of 445544405 is about 21107.9228016401. The cubic root of 445544405 is about 763.7718799621.

Adding to 445544405 its reverse (504445544), we get a palindrome (949989949).

The spelling of 445544405 in words is "four hundred forty-five million, five hundred forty-four thousand, four hundred five".