622020620 has 48 divisors (see below), whose sum is σ = 1420711488. Its totient is φ = 227385600.

The previous prime is 622020617. The next prime is 622020629. The reversal of 622020620 is 26020226.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 622020592 and 622020601.

It is not an unprimeable number, because it can be changed into a prime (622020629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14417 + ... + 38103.

It is an arithmetic number, because the mean of its divisors is an integer number (29598156).

Almost surely, 2^622020620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622020620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710355744).

622020620 is an abundant number, since it is smaller than the sum of its proper divisors (798690868).

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

622020620 is a wasteful number, since it uses less digits than its factorization.

622020620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23810 (or 23808 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 622020620 is about 24940.3412165912. The cubic root of 622020620 is about 853.6272306490.

Adding to 622020620 its reverse (26020226), we get a palindrome (648040846).

It can be divided in two parts, 6220206 and 20, that added together give a palindrome (6220226).

The spelling of 622020620 in words is "six hundred twenty-two million, twenty thousand, six hundred twenty".