2044978309 has 8 divisors (see below), whose sum is σ = 2233592928. Its totient is φ = 1856814960.

The previous prime is 2044978307. The next prime is 2044978349. The reversal of 2044978309 is 9038794402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2044978309 - 2¹ = 2044978307 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 (2044978307) 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 7 ways as a sum of consecutive naturals, for example, 103302 + ... + 121495.

It is an arithmetic number, because the mean of its divisors is an integer number (279199116).

Almost surely, 2^2044978309 is an apocalyptic number.

It is an amenable number.

2044978309 is a deficient number, since it is larger than the sum of its proper divisors (188614619).

2044978309 is a wasteful number, since it uses less digits than its factorization.

2044978309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225635.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2044978309 is about 45221.4363880671. The cubic root of 2044978309 is about 1269.2959722453.

The spelling of 2044978309 in words is "two billion, forty-four million, nine hundred seventy-eight thousand, three hundred nine".