20424404402 has 8 divisors (see below), whose sum is σ = 30790560000. Its totient is φ = 10160884404.

The previous prime is 20424404389. The next prime is 20424404417. The reversal of 20424404402 is 20440442402.

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, 25658402 + ... + 25659197.

It is an arithmetic number, because the mean of its divisors is an integer number (3848820000).

Almost surely, 2^20424404402 is an apocalyptic number.

20424404402 is a deficient number, since it is larger than the sum of its proper divisors (10366155598).

20424404402 is a wasteful number, since it uses less digits than its factorization.

20424404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51317800.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20424404402 its reverse (20440442402), we get a palindrome (40864846804).

The spelling of 20424404402 in words is "twenty billion, four hundred twenty-four million, four hundred four thousand, four hundred two".