444747445 has 8 divisors (see below), whose sum is σ = 534857400. Its totient is φ = 355024320.

The previous prime is 444747439. The next prime is 444747469. The reversal of 444747445 is 544747444.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41460721 + 403286724 = 6439^2 + 20082^2 .

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

It is not a de Polignac number, because 444747445 - 2²¹ = 442650293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94170 + ... + 98779.

It is an arithmetic number, because the mean of its divisors is an integer number (66857175).

Almost surely, 2^444747445 is an apocalyptic number.

It is an amenable number.

444747445 is a deficient number, since it is larger than the sum of its proper divisors (90109955).

444747445 is a wasteful number, since it uses less digits than its factorization.

444747445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193415.

The product of its digits is 1003520, while the sum is 43.

The square root of 444747445 is about 21089.0361325500. The cubic root of 444747445 is about 763.3162134987.

Subtracting 444747445 from its reverse (544747444), we obtain a palindrome (99999999).

The spelling of 444747445 in words is "four hundred forty-four million, seven hundred forty-seven thousand, four hundred forty-five".