444042311 has 4 divisors (see below), whose sum is σ = 447237000. Its totient is φ = 440847624.

The previous prime is 444042253. The next prime is 444042317. The reversal of 444042311 is 113240444.

It is a happy number.

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 444042311 - 2¹⁰ = 444041287 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 (444042317) 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, 1597136 + ... + 1597413.

It is an arithmetic number, because the mean of its divisors is an integer number (111809250).

Almost surely, 2^444042311 is an apocalyptic number.

444042311 is a deficient number, since it is larger than the sum of its proper divisors (3194689).

444042311 is a wasteful number, since it uses less digits than its factorization.

444042311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194688.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 444042311 is about 21072.3114773866. The cubic root of 444042311 is about 762.9125949759.

Adding to 444042311 its reverse (113240444), we get a palindrome (557282755).

The spelling of 444042311 in words is "four hundred forty-four million, forty-two thousand, three hundred eleven".