2244521000 has 64 divisors (see below), whose sum is σ = 5279040000. Its totient is φ = 893217600.

The previous prime is 2244520991. The next prime is 2244521017. The reversal of 2244521000 is 1254422.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193361 + ... + 204639.

It is an arithmetic number, because the mean of its divisors is an integer number (82485000).

Almost surely, 2^2244521000 is an apocalyptic number.

2244521000 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 2244521000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2639520000).

2244521000 is an abundant number, since it is smaller than the sum of its proper divisors (3034519000).

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

2244521000 is a wasteful number, since it uses less digits than its factorization.

2244521000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11499 (or 11485 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2244521000 is about 47376.3759694639. The cubic root of 2244521000 is about 1309.3061998319.

Adding to 2244521000 its reverse (1254422), we get a palindrome (2245775422).

The spelling of 2244521000 in words is "two billion, two hundred forty-four million, five hundred twenty-one thousand".