2201544340 has 24 divisors (see below), whose sum is σ = 4628908872. Its totient is φ = 879538560.

The previous prime is 2201544313. The next prime is 2201544361. The reversal of 2201544340 is 434451022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 634334596 + 1567209744 = 25186^2 + 39588^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50619 + ... + 83458.

It is an arithmetic number, because the mean of its divisors is an integer number (192871203).

Almost surely, 2^2201544340 is an apocalyptic number.

2201544340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201544340 is an abundant number, since it is smaller than the sum of its proper divisors (2427364532).

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

2201544340 is a wasteful number, since it uses less digits than its factorization.

2201544340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134907 (or 134905 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2201544340 is about 46920.6174298677. The cubic root of 2201544340 is about 1300.8957022445.

Adding to 2201544340 its reverse (434451022), we get a palindrome (2635995362).

The spelling of 2201544340 in words is "two billion, two hundred one million, five hundred forty-four thousand, three hundred forty".