2258287409 has 4 divisors (see below), whose sum is σ = 2580899904. Its totient is φ = 1935674916.

The previous prime is 2258287387. The next prime is 2258287417. The reversal of 2258287409 is 9047828522.

2258287409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2258287409 - 2⁸ = 2258287153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2258287469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161306237 + ... + 161306250.

It is an arithmetic number, because the mean of its divisors is an integer number (645224976).

Almost surely, 2^2258287409 is an apocalyptic number.

It is an amenable number.

2258287409 is a deficient number, since it is larger than the sum of its proper divisors (322612495).

2258287409 is an equidigital number, since it uses as much as digits as its factorization.

2258287409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322612494.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 2258287409 is about 47521.4415711476. The cubic root of 2258287409 is about 1311.9775522337.

The spelling of 2258287409 in words is "two billion, two hundred fifty-eight million, two hundred eighty-seven thousand, four hundred nine".