22028346500 has 24 divisors (see below), whose sum is σ = 48109909848. Its totient is φ = 8811338400.

The previous prime is 22028346493. The next prime is 22028346503. The reversal of 22028346500 is 564382022.

It can be written as a sum of positive squares in 4 ways, for example, as 176411524 + 21851934976 = 13282^2 + 147824^2 .

It is not an unprimeable number, because it can be changed into a prime (22028346503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22027847 + ... + 22028846.

It is an arithmetic number, because the mean of its divisors is an integer number (2004579577).

Almost surely, 2^22028346500 is an apocalyptic number.

22028346500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22028346500 is an abundant number, since it is smaller than the sum of its proper divisors (26081563348).

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

22028346500 is a wasteful number, since it uses less digits than its factorization.

22028346500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44056712 (or 44056700 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 22028346500 in words is "twenty-two billion, twenty-eight million, three hundred forty-six thousand, five hundred".