22390447300 has 72 divisors (see below), whose sum is σ = 52439659272. Its totient is φ = 8249088000.

The previous prime is 22390447217. The next prime is 22390447301. The reversal of 22390447300 is 374409322.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 9799812036 + 12590635264 = 98994^2 + 112208^2 .

It is not an unprimeable number, because it can be changed into a prime (22390447301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580620 + ... + 617980.

It is an arithmetic number, because the mean of its divisors is an integer number (728328601).

Almost surely, 2^22390447300 is an apocalyptic number.

22390447300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22390447300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26219829636).

22390447300 is an abundant number, since it is smaller than the sum of its proper divisors (30049211972).

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

22390447300 is a wasteful number, since it uses less digits than its factorization.

22390447300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37849 (or 37842 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 22390447300 in words is "twenty-two billion, three hundred ninety million, four hundred forty-seven thousand, three hundred".