2217083378 has 4 divisors (see below), whose sum is σ = 3325625070. Its totient is φ = 1108541688.

The previous prime is 2217083377. The next prime is 2217083383. The reversal of 2217083378 is 8733807122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2018075929 + 199007449 = 44923^2 + 14107^2 .

It is not an unprimeable number, because it can be changed into a prime (2217083377) 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 as a sum of consecutive naturals, namely, 554270843 + ... + 554270846.

Almost surely, 2^2217083378 is an apocalyptic number.

2217083378 is a deficient number, since it is larger than the sum of its proper divisors (1108541692).

2217083378 is a wasteful number, since it uses less digits than its factorization.

2217083378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108541691.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 2217083378 is about 47085.9148578426. The cubic root of 2217083378 is about 1303.9492092736.

The spelling of 2217083378 in words is "two billion, two hundred seventeen million, eighty-three thousand, three hundred seventy-eight".