20622402420 has 24 divisors (see below), whose sum is σ = 57742726944. Its totient is φ = 5499307296.

The previous prime is 20622402413. The next prime is 20622402433. The reversal of 20622402420 is 2420422602.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 171853294 + ... + 171853413.

It is an arithmetic number, because the mean of its divisors is an integer number (2405946956).

Almost surely, 2^20622402420 is an apocalyptic number.

20622402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20622402420 is an abundant number, since it is smaller than the sum of its proper divisors (37120324524).

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

20622402420 is a wasteful number, since it uses less digits than its factorization.

20622402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343706719 (or 343706717 counting only the distinct ones).

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

The spelling of 20622402420 in words is "twenty billion, six hundred twenty-two million, four hundred two thousand, four hundred twenty".