2190258243 has 6 divisors (see below), whose sum is σ = 3163706364. Its totient is φ = 1460172156.

The previous prime is 2190258211. The next prime is 2190258251. The reversal of 2190258243 is 3428520912.

It is a happy number.

It is not a de Polignac number, because 2190258243 - 2⁵ = 2190258211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2190258198 and 2190258207.

It is not an unprimeable number, because it can be changed into a prime (2190258293) 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 in 5 ways as a sum of consecutive naturals, for example, 121681005 + ... + 121681022.

It is an arithmetic number, because the mean of its divisors is an integer number (527284394).

Almost surely, 2^2190258243 is an apocalyptic number.

2190258243 is a deficient number, since it is larger than the sum of its proper divisors (973448121).

2190258243 is a wasteful number, since it uses less digits than its factorization.

2190258243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243362033 (or 243362030 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2190258243 is about 46800.1949034403. The cubic root of 2190258243 is about 1298.6689024176.

The spelling of 2190258243 in words is "two billion, one hundred ninety million, two hundred fifty-eight thousand, two hundred forty-three".