2213705240 has 64 divisors (see below), whose sum is σ = 5032661760. Its totient is φ = 876320640.

The previous prime is 2213705233. The next prime is 2213705267. The reversal of 2213705240 is 425073122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1889855 + ... + 1891025.

It is an arithmetic number, because the mean of its divisors is an integer number (78635340).

Almost surely, 2^2213705240 is an apocalyptic number.

2213705240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213705240 is an abundant number, since it is smaller than the sum of its proper divisors (2818956520).

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

2213705240 is a wasteful number, since it uses less digits than its factorization.

2213705240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2213705240 is about 47050.0291179506. The cubic root of 2213705240 is about 1303.2866030839.

Adding to 2213705240 its reverse (425073122), we get a palindrome (2638778362).

The spelling of 2213705240 in words is "two billion, two hundred thirteen million, seven hundred five thousand, two hundred forty".