2912218394 has 4 divisors (see below), whose sum is σ = 4368327594. Its totient is φ = 1456109196.

The previous prime is 2912218381. The next prime is 2912218403. The reversal of 2912218394 is 4938122192.

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., 2650911169 + 261307225 = 51487^2 + 16165^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728054597 + ... + 728054600.

Almost surely, 2^2912218394 is an apocalyptic number.

2912218394 is a deficient number, since it is larger than the sum of its proper divisors (1456109200).

2912218394 is a wasteful number, since it uses less digits than its factorization.

2912218394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456109199.

The product of its digits is 62208, while the sum is 41.

The square root of 2912218394 is about 53964.9737700298. The cubic root of 2912218394 is about 1428.0430946960.

The spelling of 2912218394 in words is "two billion, nine hundred twelve million, two hundred eighteen thousand, three hundred ninety-four".