2215305344 has 64 divisors (see below), whose sum is σ = 5080872960. Its totient is φ = 942434304.

The previous prime is 2215305311. The next prime is 2215305359. The reversal of 2215305344 is 4435035122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 113729 + ... + 131775.

It is an arithmetic number, because the mean of its divisors is an integer number (79388640).

Almost surely, 2^2215305344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215305344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540436480).

2215305344 is an abundant number, since it is smaller than the sum of its proper divisors (2865567616).

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

2215305344 is a wasteful number, since it uses less digits than its factorization.

2215305344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18205 (or 18193 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2215305344 is about 47067.0303290955. The cubic root of 2215305344 is about 1303.6005400704.

The spelling of 2215305344 in words is "two billion, two hundred fifteen million, three hundred five thousand, three hundred forty-four".