2223215440 has 40 divisors (see below), whose sum is σ = 5246137440. Its totient is φ = 876011136.

The previous prime is 2223215387. The next prime is 2223215497. The reversal of 2223215440 is 445123222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202030 + ... + 212749.

It is an arithmetic number, because the mean of its divisors is an integer number (131153436).

Almost surely, 2^2223215440 is an apocalyptic number.

2223215440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223215440 is an abundant number, since it is smaller than the sum of its proper divisors (3022922000).

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

2223215440 is a wasteful number, since it uses less digits than its factorization.

2223215440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414859 (or 414853 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2223215440 is about 47150.9855676422. The cubic root of 2223215440 is about 1305.1502672392.

Adding to 2223215440 its reverse (445123222), we get a palindrome (2668338662).

The spelling of 2223215440 in words is "two billion, two hundred twenty-three million, two hundred fifteen thousand, four hundred forty".