2207640960 has 256 divisors, whose sum is σ = 8936179200. Its totient is φ = 504576000.

The previous prime is 2207640943. The next prime is 2207640973. The reversal of 2207640960 is 690467022.

It is a happy number.

2207640960 is a `hidden beast` number, since 2 + 2 + 0 + 7 + 640 + 9 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111835 + ... + 130085.

It is an arithmetic number, because the mean of its divisors is an integer number (34906950).

Almost surely, 2^2207640960 is an apocalyptic number.

2207640960 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 2207640960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4468089600).

2207640960 is an abundant number, since it is smaller than the sum of its proper divisors (6728538240).

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

2207640960 is a wasteful number, since it uses less digits than its factorization.

2207640960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18286 (or 18268 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2207640960 is about 46985.5399032511. The cubic root of 2207640960 is about 1302.0954293069.

It can be divided in two parts, 22076 and 40960, that added together give a palindrome (63036).

The spelling of 2207640960 in words is "two billion, two hundred seven million, six hundred forty thousand, nine hundred sixty".