20422404402 has 64 divisors (see below), whose sum is σ = 44387429760. Its totient is φ = 6240301056.

The previous prime is 20422404383. The next prime is 20422404407. The reversal of 20422404402 is 20440422402.

It is not an unprimeable number, because it can be changed into a prime (20422404407) 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 31 ways as a sum of consecutive naturals, for example, 591438 + ... + 625014.

It is an arithmetic number, because the mean of its divisors is an integer number (693553590).

Almost surely, 2^20422404402 is an apocalyptic number.

20422404402 is an abundant number, since it is smaller than the sum of its proper divisors (23965025358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20422404402 is a wasteful number, since it uses less digits than its factorization.

20422404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33755.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20422404402 its reverse (20440422402), we get a palindrome (40862826804).

The spelling of 20422404402 in words is "twenty billion, four hundred twenty-two million, four hundred four thousand, four hundred two".