20042420410 has 8 divisors (see below), whose sum is σ = 36076356756. Its totient is φ = 8016968160.

The previous prime is 20042420407. The next prime is 20042420423. The reversal of 20042420410 is 1402424002.

It can be written as a sum of positive squares in 2 ways, for example, as 19914572161 + 127848249 = 141119^2 + 11307^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002121011 + ... + 1002121030.

Almost surely, 2^20042420410 is an apocalyptic number.

20042420410 is a deficient number, since it is larger than the sum of its proper divisors (16033936346).

20042420410 is a wasteful number, since it uses less digits than its factorization.

20042420410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004242048.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20042420410 its reverse (1402424002), we get a palindrome (21444844412).

The spelling of 20042420410 in words is "twenty billion, forty-two million, four hundred twenty thousand, four hundred ten".