444140446 has 8 divisors (see below), whose sum is σ = 666384264. Its totient is φ = 222012360.

The previous prime is 444140443. The next prime is 444140467. The reversal of 444140446 is 644041444.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444140443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18600 + ... + 35131.

It is an arithmetic number, because the mean of its divisors is an integer number (83298033).

Almost surely, 2^444140446 is an apocalyptic number.

444140446 is a deficient number, since it is larger than the sum of its proper divisors (222243818).

444140446 is a wasteful number, since it uses less digits than its factorization.

444140446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57866.

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 444140446 is about 21074.6398782992. The cubic root of 444140446 is about 762.9687930085.

The spelling of 444140446 in words is "four hundred forty-four million, one hundred forty thousand, four hundred forty-six".