20440204310 has 32 divisors (see below), whose sum is σ = 37037904480. Its totient is φ = 8121603328.

The previous prime is 20440204223. The next prime is 20440204321. The reversal of 20440204310 is 1340204402.

It is a super-2 number, since 2×20440204310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 2214986 + ... + 2224194.

It is an arithmetic number, because the mean of its divisors is an integer number (1157434515).

Almost surely, 2^20440204310 is an apocalyptic number.

20440204310 is a deficient number, since it is larger than the sum of its proper divisors (16597700170).

20440204310 is a wasteful number, since it uses less digits than its factorization.

20440204310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20440204310 its reverse (1340204402), we get a palindrome (21780408712).

The spelling of 20440204310 in words is "twenty billion, four hundred forty million, two hundred four thousand, three hundred ten".