444320541 has 12 divisors (see below), whose sum is σ = 733481632. Its totient is φ = 253897416.

The previous prime is 444320537. The next prime is 444320557. The reversal of 444320541 is 145023444.

It is a happy number.

It is not a de Polignac number, because 444320541 - 2² = 444320537 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 (444320501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3526291 + ... + 3526416.

Almost surely, 2^444320541 is an apocalyptic number.

It is an amenable number.

444320541 is a deficient number, since it is larger than the sum of its proper divisors (289161091).

444320541 is a wasteful number, since it uses less digits than its factorization.

444320541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052720 (or 7052717 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 444320541 is about 21078.9122347430. The cubic root of 444320541 is about 763.0719047589.

Adding to 444320541 its reverse (145023444), we get a palindrome (589343985).

The spelling of 444320541 in words is "four hundred forty-four million, three hundred twenty thousand, five hundred forty-one".