2391328285 has 8 divisors (see below), whose sum is σ = 2994359040. Its totient is φ = 1829885904.

The previous prime is 2391328279. The next prime is 2391328343. The reversal of 2391328285 is 5828231932.

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

It is a cyclic number.

It is not a de Polignac number, because 2391328285 - 2¹¹ = 2391326237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10396965 + ... + 10397194.

It is an arithmetic number, because the mean of its divisors is an integer number (374294880).

Almost surely, 2^2391328285 is an apocalyptic number.

It is an amenable number.

2391328285 is a deficient number, since it is larger than the sum of its proper divisors (603030755).

2391328285 is a wasteful number, since it uses less digits than its factorization.

2391328285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20794187.

The product of its digits is 207360, while the sum is 43.

The square root of 2391328285 is about 48901.2094431211. The cubic root of 2391328285 is about 1337.2514175109.

The spelling of 2391328285 in words is "two billion, three hundred ninety-one million, three hundred twenty-eight thousand, two hundred eighty-five".