944209011 has 4 divisors (see below), whose sum is σ = 1258945352. Its totient is φ = 629472672.

The previous prime is 944209003. The next prime is 944209043. The reversal of 944209011 is 110902449.

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

It is not a de Polignac number, because 944209011 - 2³ = 944209003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 944209011.

It is not an unprimeable number, because it can be changed into a prime (944209001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157368166 + ... + 157368171.

It is an arithmetic number, because the mean of its divisors is an integer number (314736338).

Almost surely, 2^944209011 is an apocalyptic number.

944209011 is a deficient number, since it is larger than the sum of its proper divisors (314736341).

944209011 is a wasteful number, since it uses less digits than its factorization.

944209011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314736340.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 944209011 is about 30727.9841675304. The cubic root of 944209011 is about 981.0460200718.

The spelling of 944209011 in words is "nine hundred forty-four million, two hundred nine thousand, eleven".