444406028 has 24 divisors (see below), whose sum is σ = 849021264. Its totient is φ = 201857600.

The previous prime is 444406021. The next prime is 444406037. The reversal of 444406028 is 820604444.

It is a junction number, because it is equal to n+sod(n) for n = 444405985 and 444406003.

It is not an unprimeable number, because it can be changed into a prime (444406021) 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, 79898 + ... + 85278.

It is an arithmetic number, because the mean of its divisors is an integer number (35375886).

Almost surely, 2^444406028 is an apocalyptic number.

It is an amenable number.

444406028 is a deficient number, since it is larger than the sum of its proper divisors (404615236).

444406028 is a wasteful number, since it uses less digits than its factorization.

444406028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7273 (or 7271 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 444406028 is about 21080.9399221192. The cubic root of 444406028 is about 763.1208398098.

The spelling of 444406028 in words is "four hundred forty-four million, four hundred six thousand, twenty-eight".