2258245442 has 8 divisors (see below), whose sum is σ = 3388956732. Its totient is φ = 1128593200.

The previous prime is 2258245421. The next prime is 2258245447. The reversal of 2258245442 is 2445428522.

It is a Cunningham number, because it is equal to 47521²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2258245441 + 1 = 47521^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2258245396 and 2258245405.

It is not an unprimeable number, because it can be changed into a prime (2258245447) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 259409 + ... + 267972.

Almost surely, 2^2258245442 is an apocalyptic number.

2258245442 is a deficient number, since it is larger than the sum of its proper divisors (1130711290).

2258245442 is a wasteful number, since it uses less digits than its factorization.

2258245442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529524.

The product of its digits is 204800, while the sum is 38.

The square root of 2258245442 is about 47521.0000105217. Note that the first 4 decimals coincide. The cubic root of 2258245442 is about 1311.9694251160.

The spelling of 2258245442 in words is "two billion, two hundred fifty-eight million, two hundred forty-five thousand, four hundred forty-two".