2217798396 has 36 divisors (see below), whose sum is σ = 6115748184. Its totient is φ = 672060000.

The previous prime is 2217798383. The next prime is 2217798439. The reversal of 2217798396 is 6938977122.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2799855 + ... + 2800646.

It is an arithmetic number, because the mean of its divisors is an integer number (169881894).

Almost surely, 2^2217798396 is an apocalyptic number.

It is an amenable number.

2217798396 is an abundant number, since it is smaller than the sum of its proper divisors (3897949788).

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

2217798396 is a wasteful number, since it uses less digits than its factorization.

2217798396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600522 (or 5600517 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 2217798396 is about 47093.5069409786. The cubic root of 2217798396 is about 1304.0893704352.

The spelling of 2217798396 in words is "two billion, two hundred seventeen million, seven hundred ninety-eight thousand, three hundred ninety-six".