2215310440 has 32 divisors (see below), whose sum is σ = 5696513280. Its totient is φ = 759534912.

The previous prime is 2215310431. The next prime is 2215310459. The reversal of 2215310440 is 440135122.

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, 3955632 + ... + 3956191.

It is an arithmetic number, because the mean of its divisors is an integer number (178016040).

Almost surely, 2^2215310440 is an apocalyptic number.

2215310440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215310440 is an abundant number, since it is smaller than the sum of its proper divisors (3481202840).

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

2215310440 is a wasteful number, since it uses less digits than its factorization.

2215310440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911841 (or 7911837 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2215310440 is about 47067.0844646235. The cubic root of 2215310440 is about 1303.6015396531.

Adding to 2215310440 its reverse (440135122), we get a palindrome (2655445562).

The spelling of 2215310440 in words is "two billion, two hundred fifteen million, three hundred ten thousand, four hundred forty".