2215563398 has 8 divisors (see below), whose sum is σ = 3379673160. Its totient is φ = 1089005680.

The previous prime is 2215563391. The next prime is 2215563421. The reversal of 2215563398 is 8933655122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215563391) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9387863 + ... + 9388098.

It is an arithmetic number, because the mean of its divisors is an integer number (422459145).

Almost surely, 2^2215563398 is an apocalyptic number.

2215563398 is a deficient number, since it is larger than the sum of its proper divisors (1164109762).

2215563398 is a wasteful number, since it uses less digits than its factorization.

2215563398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18776022.

The product of its digits is 388800, while the sum is 44.

The square root of 2215563398 is about 47069.7715949419. The cubic root of 2215563398 is about 1303.6511555568.

The spelling of 2215563398 in words is "two billion, two hundred fifteen million, five hundred sixty-three thousand, three hundred ninety-eight".