20044440345 has 32 divisors (see below), whose sum is σ = 32339957760. Its totient is φ = 10600873920.

The previous prime is 20044440307. The next prime is 20044440389. The reversal of 20044440345 is 54304444002.

It is not a de Polignac number, because 20044440345 - 2¹⁴ = 20044423961 is a prime.

It is a super-3 number, since 3×20044440345³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3429936 + ... + 3435774.

It is an arithmetic number, because the mean of its divisors is an integer number (1010623680).

Almost surely, 2^20044440345 is an apocalyptic number.

It is an amenable number.

20044440345 is a deficient number, since it is larger than the sum of its proper divisors (12295517415).

20044440345 is a wasteful number, since it uses less digits than its factorization.

20044440345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 20044440345 its reverse (54304444002), we get a palindrome (74348884347).

The spelling of 20044440345 in words is "twenty billion, forty-four million, four hundred forty thousand, three hundred forty-five".