2208131064 has 128 divisors (see below), whose sum is σ = 6301440000. Its totient is φ = 716107392.

The previous prime is 2208131011. The next prime is 2208131069. The reversal of 2208131064 is 4601318022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2208131069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2019702 + ... + 2020794.

It is an arithmetic number, because the mean of its divisors is an integer number (49230000).

Almost surely, 2^2208131064 is an apocalyptic number.

2208131064 is a gapful number since it is divisible by the number (24) 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 2208131064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3150720000).

2208131064 is an abundant number, since it is smaller than the sum of its proper divisors (4093308936).

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

2208131064 is a wasteful number, since it uses less digits than its factorization.

2208131064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2208131064 is about 46990.7550907623. The cubic root of 2208131064 is about 1302.1917787542.

Adding to 2208131064 its reverse (4601318022), we get a palindrome (6809449086).

The spelling of 2208131064 in words is "two billion, two hundred eight million, one hundred thirty-one thousand, sixty-four".