2225531340 has 144 divisors (see below), whose sum is σ = 7005005280. Its totient is φ = 571253760.

The previous prime is 2225531333. The next prime is 2225531383. The reversal of 2225531340 is 431355222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3220395 + ... + 3221085.

It is an arithmetic number, because the mean of its divisors is an integer number (48645870).

Almost surely, 2^2225531340 is an apocalyptic number.

2225531340 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 2225531340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3502502640).

2225531340 is an abundant number, since it is smaller than the sum of its proper divisors (4779473940).

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

2225531340 is a wasteful number, since it uses less digits than its factorization.

2225531340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2225531340 is about 47175.5375168106. The cubic root of 2225531340 is about 1305.6032970446.

Adding to 2225531340 its reverse (431355222), we get a palindrome (2656886562).

The spelling of 2225531340 in words is "two billion, two hundred twenty-five million, five hundred thirty-one thousand, three hundred forty".