20420044010 has 8 divisors (see below), whose sum is σ = 36756079236. Its totient is φ = 8168017600.

The previous prime is 20420044009. The next prime is 20420044067. The reversal of 20420044010 is 1044002402.

It can be written as a sum of positive squares in 2 ways, for example, as 20419552609 + 491401 = 142897^2 + 701^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20420044010.

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 3 ways as a sum of consecutive naturals, for example, 1021002191 + ... + 1021002210.

Almost surely, 2^20420044010 is an apocalyptic number.

20420044010 is a deficient number, since it is larger than the sum of its proper divisors (16336035226).

20420044010 is a wasteful number, since it uses less digits than its factorization.

20420044010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042004408.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20420044010 its reverse (1044002402), we get a palindrome (21464046412).

The spelling of 20420044010 in words is "twenty billion, four hundred twenty million, forty-four thousand, ten".