20622602420 has 48 divisors (see below), whose sum is σ = 52405678080. Its totient is φ = 6654687744.

The previous prime is 20622602393. The next prime is 20622602543. The reversal of 20622602420 is 2420622602.

It is a self number, because there is not a number n which added to its sum of digits gives 20622602420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4330100 + ... + 4334859.

It is an arithmetic number, because the mean of its divisors is an integer number (1091784960).

Almost surely, 2^20622602420 is an apocalyptic number.

20622602420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20622602420 is an abundant number, since it is smaller than the sum of its proper divisors (31783075660).

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

20622602420 is a wasteful number, since it uses less digits than its factorization.

20622602420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8664992 (or 8664990 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 20622602420 in words is "twenty billion, six hundred twenty-two million, six hundred two thousand, four hundred twenty".