622120650 has 48 divisors (see below), whose sum is σ = 1544407104. Its totient is φ = 165732480.

The previous prime is 622120621. The next prime is 622120691. The reversal of 622120650 is 56021226.

It is a self number, because there is not a number n which added to its sum of digits gives 622120650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247299 + ... + 249801.

It is an arithmetic number, because the mean of its divisors is an integer number (32175148).

Almost surely, 2^622120650 is an apocalyptic number.

622120650 is an abundant number, since it is smaller than the sum of its proper divisors (922286454).

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

622120650 is a wasteful number, since it uses less digits than its factorization.

622120650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175 (or 4170 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 622120650 is about 24942.3465215284. The cubic root of 622120650 is about 853.6729867715.

Adding to 622120650 its reverse (56021226), we get a palindrome (678141876).

The spelling of 622120650 in words is "six hundred twenty-two million, one hundred twenty thousand, six hundred fifty".