444040442 has 8 divisors (see below), whose sum is σ = 705240756. Its totient is φ = 208960192.

The previous prime is 444040439. The next prime is 444040453. The reversal of 444040442 is 244040444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 443565721 + 474721 = 21061^2 + 689^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6529973 + ... + 6530040.

Almost surely, 2^444040442 is an apocalyptic number.

444040442 is a deficient number, since it is larger than the sum of its proper divisors (261200314).

444040442 is a wasteful number, since it uses less digits than its factorization.

444040442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13060032.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 444040442 is about 21072.2671300456. The cubic root of 444040442 is about 762.9115245932.

Adding to 444040442 its reverse (244040444), we get a palindrome (688080886).

The spelling of 444040442 in words is "four hundred forty-four million, forty thousand, four hundred forty-two".