2044505405 has 16 divisors (see below), whose sum is σ = 2507929344. Its totient is φ = 1599320640.

The previous prime is 2044505399. The next prime is 2044505413. The reversal of 2044505405 is 5045054402.

It is not a de Polignac number, because 2044505405 - 2¹⁶ = 2044439869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298115 + ... + 304895.

It is an arithmetic number, because the mean of its divisors is an integer number (156745584).

Almost surely, 2^2044505405 is an apocalyptic number.

It is an amenable number.

2044505405 is a deficient number, since it is larger than the sum of its proper divisors (463423939).

2044505405 is a wasteful number, since it uses less digits than its factorization.

2044505405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 2044505405 is about 45216.2073265770. The cubic root of 2044505405 is about 1269.1981225654.

Adding to 2044505405 its reverse (5045054402), we get a palindrome (7089559807).

The spelling of 2044505405 in words is "two billion, forty-four million, five hundred five thousand, four hundred five".