2391317284 has 6 divisors (see below), whose sum is σ = 4184805254. Its totient is φ = 1195658640.

The previous prime is 2391317273. The next prime is 2391317297. The reversal of 2391317284 is 4827131932.

It can be written as a sum of positive squares in only one way, i.e., 1474560000 + 916757284 = 38400^2 + 30278^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 298914657 + ... + 298914664.

Almost surely, 2^2391317284 is an apocalyptic number.

It is an amenable number.

2391317284 is a deficient number, since it is larger than the sum of its proper divisors (1793487970).

2391317284 is a wasteful number, since it uses less digits than its factorization.

2391317284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597829325 (or 597829323 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 2391317284 is about 48901.0969611112. The cubic root of 2391317284 is about 1337.2493668897.

The spelling of 2391317284 in words is "two billion, three hundred ninety-one million, three hundred seventeen thousand, two hundred eighty-four".