20240443345 has 8 divisors (see below), whose sum is σ = 24306230376. Its totient is φ = 16180555776.

The previous prime is 20240443339. The next prime is 20240443453. The reversal of 20240443345 is 54334404202.

It can be written as a sum of positive squares in 4 ways, for example, as 6559866049 + 13680577296 = 80993^2 + 116964^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20240443345 - 2¹⁵ = 20240410577 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1467312 + ... + 1481041.

It is an arithmetic number, because the mean of its divisors is an integer number (3038278797).

Almost surely, 2^20240443345 is an apocalyptic number.

It is an amenable number.

20240443345 is a deficient number, since it is larger than the sum of its proper divisors (4065787031).

20240443345 is a wasteful number, since it uses less digits than its factorization.

20240443345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949731.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 20240443345 its reverse (54334404202), we get a palindrome (74574847547).

The spelling of 20240443345 in words is "twenty billion, two hundred forty million, four hundred forty-three thousand, three hundred forty-five".