444381774 has 8 divisors (see below), whose sum is σ = 888763560. Its totient is φ = 148127256.

The previous prime is 444381731. The next prime is 444381787. The reversal of 444381774 is 477183444.

It is a happy number.

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

444381774 is an admirable number.

It is a super-2 number, since 2×444381774² = 394950322126774152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 37031809 + ... + 37031820.

It is an arithmetic number, because the mean of its divisors is an integer number (111095445).

Almost surely, 2^444381774 is an apocalyptic number.

444381774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

444381774 is a wasteful number, since it uses less digits than its factorization.

444381774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74063634.

The product of its digits is 301056, while the sum is 42.

The square root of 444381774 is about 21080.3646552900. The cubic root of 444381774 is about 763.1069568076.

The spelling of 444381774 in words is "four hundred forty-four million, three hundred eighty-one thousand, seven hundred seventy-four".