444007440407 has 4 divisors (see below), whose sum is σ = 467376253080. Its totient is φ = 420638627736.

The previous prime is 444007440403. The next prime is 444007440431. The reversal of 444007440407 is 704044700444.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 444007440407 - 2² = 444007440403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444007440403) 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, 11684406308 + ... + 11684406345.

It is an arithmetic number, because the mean of its divisors is an integer number (116844063270).

Almost surely, 2^444007440407 is an apocalyptic number.

444007440407 is a deficient number, since it is larger than the sum of its proper divisors (23368812673).

444007440407 is a wasteful number, since it uses less digits than its factorization.

444007440407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23368812672.

The product of its (nonzero) digits is 200704, while the sum is 38.

The spelling of 444007440407 in words is "four hundred forty-four billion, seven million, four hundred forty thousand, four hundred seven".