444195081 has 12 divisors (see below), whose sum is σ = 699943920. Its totient is φ = 269209080.

The previous prime is 444195029. The next prime is 444195109. The reversal of 444195081 is 180591444.

It is not a de Polignac number, because 444195081 - 2¹⁴ = 444178697 is a prime.

It is a super-2 number, since 2×444195081² = 394618539969193122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444195181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2243311 + ... + 2243508.

It is an arithmetic number, because the mean of its divisors is an integer number (58328660).

Almost surely, 2^444195081 is an apocalyptic number.

It is an amenable number.

444195081 is a deficient number, since it is larger than the sum of its proper divisors (255748839).

444195081 is a wasteful number, since it uses less digits than its factorization.

444195081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486836 (or 4486833 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 444195081 is about 21075.9360646212. The cubic root of 444195081 is about 763.0000767246. Note that the first 4 decimals are identical.

The spelling of 444195081 in words is "four hundred forty-four million, one hundred ninety-five thousand, eighty-one".