444642395 has 12 divisors (see below), whose sum is σ = 566805504. Its totient is φ = 334788480.

The previous prime is 444642391. The next prime is 444642397. The reversal of 444642395 is 593246444.

It is a happy number.

It is not a de Polignac number, because 444642395 - 2² = 444642391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444642391) 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 11 ways as a sum of consecutive naturals, for example, 152411 + ... + 155300.

It is an arithmetic number, because the mean of its divisors is an integer number (47233792).

Almost surely, 2^444642395 is an apocalyptic number.

444642395 is a deficient number, since it is larger than the sum of its proper divisors (122163109).

444642395 is a wasteful number, since it uses less digits than its factorization.

444642395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307750 (or 307733 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 444642395 is about 21086.5453547991. The cubic root of 444642395 is about 763.2561099626.

The spelling of 444642395 in words is "four hundred forty-four million, six hundred forty-two thousand, three hundred ninety-five".