444672407 has 4 divisors (see below), whose sum is σ = 444773736. Its totient is φ = 444571080.

The previous prime is 444672377. The next prime is 444672413. The reversal of 444672407 is 704276444.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444672407 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 (444672427) 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 3 ways as a sum of consecutive naturals, for example, 43769 + ... + 52962.

It is an arithmetic number, because the mean of its divisors is an integer number (111193434).

Almost surely, 2^444672407 is an apocalyptic number.

444672407 is a deficient number, since it is larger than the sum of its proper divisors (101329).

444672407 is an equidigital number, since it uses as much as digits as its factorization.

444672407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101328.

The product of its (nonzero) digits is 150528, while the sum is 38.

The square root of 444672407 is about 21087.2569814094. The cubic root of 444672407 is about 763.2732820596.

The spelling of 444672407 in words is "four hundred forty-four million, six hundred seventy-two thousand, four hundred seven".