20404242410 has 16 divisors (see below), whose sum is σ = 37230755976. Its totient is φ = 8049892608.

The previous prime is 20404242317. The next prime is 20404242413. The reversal of 20404242410 is 1424240402.

It can be written as a sum of positive squares in 4 ways, for example, as 15901966609 + 4502275801 = 126103^2 + 67099^2 .

It is not an unprimeable number, because it can be changed into a prime (20404242413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13974779 + ... + 13976238.

Almost surely, 2^20404242410 is an apocalyptic number.

20404242410 is a deficient number, since it is larger than the sum of its proper divisors (16826513566).

20404242410 is a wasteful number, since it uses less digits than its factorization.

20404242410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27951097.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20404242410 its reverse (1424240402), we get a palindrome (21828482812).

The spelling of 20404242410 in words is "twenty billion, four hundred four million, two hundred forty-two thousand, four hundred ten".