444198906 has 24 divisors (see below), whose sum is σ = 962818740. Its totient is φ = 148006656.

The previous prime is 444198851. The next prime is 444198917. The reversal of 444198906 is 609891444.

It can be written as a sum of positive squares in 2 ways, for example, as 427869225 + 16329681 = 20685^2 + 4041^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83626 + ... + 88778.

Almost surely, 2^444198906 is an apocalyptic number.

444198906 is an abundant number, since it is smaller than the sum of its proper divisors (518619834).

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

444198906 is a wasteful number, since it uses less digits than its factorization.

444198906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9950 (or 9947 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 444198906 is about 21076.0268077264. The cubic root of 444198906 is about 763.0022668035.

The spelling of 444198906 in words is "four hundred forty-four million, one hundred ninety-eight thousand, nine hundred six".