444920169 has 8 divisors (see below), whose sum is σ = 624449440. Its totient is φ = 281002176.

The previous prime is 444920159. The next prime is 444920171. The reversal of 444920169 is 961029444.

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

It is not a de Polignac number, because 444920169 - 2⁵ = 444920137 is a prime.

It is a super-2 number, since 2×444920169² = 395907913565977122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444920129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3902752 + ... + 3902865.

It is an arithmetic number, because the mean of its divisors is an integer number (78056180).

Almost surely, 2^444920169 is an apocalyptic number.

It is an amenable number.

444920169 is a deficient number, since it is larger than the sum of its proper divisors (179529271).

444920169 is a wasteful number, since it uses less digits than its factorization.

444920169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805639.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 444920169 is about 21093.1308486910. The cubic root of 444920169 is about 763.4150156145.

The spelling of 444920169 in words is "four hundred forty-four million, nine hundred twenty thousand, one hundred sixty-nine".