444749538 has 32 divisors (see below), whose sum is σ = 905523840. Its totient is φ = 145595520.

The previous prime is 444749537. The next prime is 444749567. The reversal of 444749538 is 835947444.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444749531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116118 + ... + 119886.

It is an arithmetic number, because the mean of its divisors is an integer number (28297620).

Almost surely, 2^444749538 is an apocalyptic number.

444749538 is an abundant number, since it is smaller than the sum of its proper divisors (460774302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444749538 is a wasteful number, since it uses less digits than its factorization.

444749538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122.

The product of its digits is 1935360, while the sum is 48.

The square root of 444749538 is about 21089.0857554328. The cubic root of 444749538 is about 763.3174108962.

The spelling of 444749538 in words is "four hundred forty-four million, seven hundred forty-nine thousand, five hundred thirty-eight".