20440441234 has 4 divisors (see below), whose sum is σ = 30660661854. Its totient is φ = 10220220616.

The previous prime is 20440441223. The next prime is 20440441253. The reversal of 20440441234 is 43214404402.

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

It can be written as a sum of positive squares in only one way, i.e., 18625425625 + 1815015609 = 136475^2 + 42603^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110110307 + ... + 5110110310.

Almost surely, 2^20440441234 is an apocalyptic number.

20440441234 is a deficient number, since it is larger than the sum of its proper divisors (10220220620).

20440441234 is a wasteful number, since it uses less digits than its factorization.

20440441234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220220619.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20440441234 its reverse (43214404402), we get a palindrome (63654845636).

The spelling of 20440441234 in words is "twenty billion, four hundred forty million, four hundred forty-one thousand, two hundred thirty-four".