20402602422 has 8 divisors (see below), whose sum is σ = 40805204856. Its totient is φ = 6800867472.

The previous prime is 20402602397. The next prime is 20402602463. The reversal of 20402602422 is 22420620402.

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

20402602422 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20402602392 and 20402602401.

It is a congruent number.

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, 1700216863 + ... + 1700216874.

It is an arithmetic number, because the mean of its divisors is an integer number (5100650607).

Almost surely, 2^20402602422 is an apocalyptic number.

20402602422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20402602422 is a wasteful number, since it uses less digits than its factorization.

20402602422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400433742.

The product of its (nonzero) digits is 3072, while the sum is 24.

The spelling of 20402602422 in words is "twenty billion, four hundred two million, six hundred two thousand, four hundred twenty-two".