444400331 has 4 divisors (see below), whose sum is σ = 451932600. Its totient is φ = 436868064.

The previous prime is 444400301. The next prime is 444400337. The reversal of 444400331 is 133004444.

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

It is a cyclic number.

It is not a de Polignac number, because 444400331 - 2⁶ = 444400267 is a prime.

It is a super-2 number, since 2×444400331² = 394983308385819122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444400297 and 444400306.

It is not an unprimeable number, because it can be changed into a prime (444400337) 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, 3766046 + ... + 3766163.

It is an arithmetic number, because the mean of its divisors is an integer number (112983150).

Almost surely, 2^444400331 is an apocalyptic number.

444400331 is a deficient number, since it is larger than the sum of its proper divisors (7532269).

444400331 is an equidigital number, since it uses as much as digits as its factorization.

444400331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532268.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 444400331 is about 21080.8047996276. The cubic root of 444400331 is about 763.1175788894.

Adding to 444400331 its reverse (133004444), we get a palindrome (577404775).

The spelling of 444400331 in words is "four hundred forty-four million, four hundred thousand, three hundred thirty-one".