20622422730 has 576 divisors, whose sum is σ = 69755852160. Its totient is φ = 3864526848.

The previous prime is 20622422719. The next prime is 20622422731. The reversal of 20622422730 is 3722422602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20622422731) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 80242762 + ... + 80243018.

It is an arithmetic number, because the mean of its divisors is an integer number (121103910).

Almost surely, 2^20622422730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20622422730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34877926080).

20622422730 is an abundant number, since it is smaller than the sum of its proper divisors (49133429430).

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

20622422730 is a wasteful number, since it uses less digits than its factorization.

20622422730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The spelling of 20622422730 in words is "twenty billion, six hundred twenty-two million, four hundred twenty-two thousand, seven hundred thirty".