444161228 has 12 divisors (see below), whose sum is σ = 888322512. Its totient is φ = 190354800.

The previous prime is 444161219. The next prime is 444161239. The reversal of 444161228 is 822161444.

444161228 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 444161194 and 444161203.

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, 7931423 + ... + 7931478.

It is an arithmetic number, because the mean of its divisors is an integer number (74026876).

Almost surely, 2^444161228 is an apocalyptic number.

It is an amenable number.

444161228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

444161228 is a wasteful number, since it uses less digits than its factorization.

444161228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15862912 (or 15862910 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 444161228 is about 21075.1329295926. The cubic root of 444161228 is about 762.9806929756.

The spelling of 444161228 in words is "four hundred forty-four million, one hundred sixty-one thousand, two hundred twenty-eight".