2215440326 has 32 divisors (see below), whose sum is σ = 3762823680. Its totient is φ = 969040800.

The previous prime is 2215440319. The next prime is 2215440347. The reversal of 2215440326 is 6230445122.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 190211 + ... + 201521.

It is an arithmetic number, because the mean of its divisors is an integer number (117588240).

Almost surely, 2^2215440326 is an apocalyptic number.

2215440326 is a deficient number, since it is larger than the sum of its proper divisors (1547383354).

2215440326 is a wasteful number, since it uses less digits than its factorization.

2215440326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2215440326 is about 47068.4642409331. The cubic root of 2215440326 is about 1303.6270163354.

Adding to 2215440326 its reverse (6230445122), we get a palindrome (8445885448).

The spelling of 2215440326 in words is "two billion, two hundred fifteen million, four hundred forty thousand, three hundred twenty-six".