2044423551 has 4 divisors (see below), whose sum is σ = 2725898072. Its totient is φ = 1362949032.

The previous prime is 2044423529. The next prime is 2044423559. The reversal of 2044423551 is 1553244402.

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

It is not a de Polignac number, because 2044423551 - 2¹¹ = 2044421503 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 (2044423559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340737256 + ... + 340737261.

It is an arithmetic number, because the mean of its divisors is an integer number (681474518).

Almost surely, 2^2044423551 is an apocalyptic number.

2044423551 is a deficient number, since it is larger than the sum of its proper divisors (681474521).

2044423551 is an equidigital number, since it uses as much as digits as its factorization.

2044423551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681474520.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2044423551 is about 45215.3021774708. The cubic root of 2044423551 is about 1269.1811844298.

Adding to 2044423551 its reverse (1553244402), we get a palindrome (3597667953).

The spelling of 2044423551 in words is "two billion, forty-four million, four hundred twenty-three thousand, five hundred fifty-one".