444090071 has 4 divisors (see below), whose sum is σ = 444372192. Its totient is φ = 443807952.

The previous prime is 444090061. The next prime is 444090091. The reversal of 444090071 is 170090444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444090071 - 2⁶ = 444090007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444090011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138686 + ... + 141851.

It is an arithmetic number, because the mean of its divisors is an integer number (111093048).

Almost surely, 2^444090071 is an apocalyptic number.

444090071 is a deficient number, since it is larger than the sum of its proper divisors (282121).

444090071 is a wasteful number, since it uses less digits than its factorization.

444090071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282120.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 444090071 is about 21073.4446875683. Note that the first 3 decimals coincide. The cubic root of 444090071 is about 762.9399462728.

The spelling of 444090071 in words is "four hundred forty-four million, ninety thousand, seventy-one".