2689207220 has 288 divisors, whose sum is σ = 7413202944. Its totient is φ = 812851200.

The previous prime is 2689207201. The next prime is 2689207247. The reversal of 2689207220 is 227029862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21174797 + ... + 21174923.

It is an arithmetic number, because the mean of its divisors is an integer number (25740288).

Almost surely, 2^2689207220 is an apocalyptic number.

2689207220 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 2689207220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3706601472).

2689207220 is an abundant number, since it is smaller than the sum of its proper divisors (4723995724).

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

2689207220 is a wasteful number, since it uses less digits than its factorization.

2689207220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2689207220 is about 51857.5666609994. The cubic root of 2689207220 is about 1390.6187780355.

The spelling of 2689207220 in words is "two billion, six hundred eighty-nine million, two hundred seven thousand, two hundred twenty".