2258306831 has 8 divisors (see below), whose sum is σ = 2463971664. Its totient is φ = 2052702720.

The previous prime is 2258306789. The next prime is 2258306837. The reversal of 2258306831 is 1386038522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2258306831 is a prime.

It is a super-2 number, since 2×2258306831² = 10199899485882525122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258306837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101861 + ... + 122033.

It is an arithmetic number, because the mean of its divisors is an integer number (307996458).

Almost surely, 2^2258306831 is an apocalyptic number.

2258306831 is a deficient number, since it is larger than the sum of its proper divisors (205664833).

2258306831 is a wasteful number, since it uses less digits than its factorization.

2258306831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30361.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2258306831 is about 47521.6459205697. The cubic root of 2258306831 is about 1311.9813133663.

The spelling of 2258306831 in words is "two billion, two hundred fifty-eight million, three hundred six thousand, eight hundred thirty-one".