444227409 has 20 divisors (see below), whose sum is σ = 677723904. Its totient is φ = 289848024.

The previous prime is 444227401. The next prime is 444227417. The reversal of 444227409 is 904722444.

It is an interprime number because it is at equal distance from previous prime (444227401) and next prime (444227417).

It is not a de Polignac number, because 444227409 - 2³ = 444227401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444227401) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 54537 + ... + 62150.

Almost surely, 2^444227409 is an apocalyptic number.

It is an amenable number.

444227409 is a deficient number, since it is larger than the sum of its proper divisors (233496495).

444227409 is a wasteful number, since it uses less digits than its factorization.

444227409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116746 (or 116737 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 444227409 is about 21076.7029916920. The cubic root of 444227409 is about 763.0185863608.

The spelling of 444227409 in words is "four hundred forty-four million, two hundred twenty-seven thousand, four hundred nine".