544665444 has 12 divisors (see below), whose sum is σ = 1270886064. Its totient is φ = 181555144.

The previous prime is 544665439. The next prime is 544665481. The reversal of 544665444 is 444566445.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 544665396 and 544665405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22694382 + ... + 22694405.

It is an arithmetic number, because the mean of its divisors is an integer number (105907172).

Almost surely, 2^544665444 is an apocalyptic number.

It is an amenable number.

544665444 is an abundant number, since it is smaller than the sum of its proper divisors (726220620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

544665444 is a wasteful number, since it uses less digits than its factorization.

544665444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45388794 (or 45388792 counting only the distinct ones).

The product of its digits is 921600, while the sum is 42.

The square root of 544665444 is about 23338.0685576163. The cubic root of 544665444 is about 816.6637417268.

The spelling of 544665444 in words is "five hundred forty-four million, six hundred sixty-five thousand, four hundred forty-four".