444491378 has 8 divisors (see below), whose sum is σ = 666931968. Its totient is φ = 222180724.

The previous prime is 444491371. The next prime is 444491389. The reversal of 444491378 is 873194444.

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

It is not an unprimeable number, because it can be changed into a prime (444491371) by changing a digit.

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, 23426 + ... + 37917.

It is an arithmetic number, because the mean of its divisors is an integer number (83366496).

Almost surely, 2^444491378 is an apocalyptic number.

444491378 is a deficient number, since it is larger than the sum of its proper divisors (222440590).

444491378 is a wasteful number, since it uses less digits than its factorization.

444491378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64968.

The product of its digits is 387072, while the sum is 44.

The square root of 444491378 is about 21082.9641654109. The cubic root of 444491378 is about 763.1696901781.

The spelling of 444491378 in words is "four hundred forty-four million, four hundred ninety-one thousand, three hundred seventy-eight".