2257648849 has 8 divisors (see below), whose sum is σ = 2285206560. Its totient is φ = 2230140000.

The previous prime is 2257648829. The next prime is 2257648871. The reversal of 2257648849 is 9488467522.

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 2257648849 - 2¹³ = 2257640657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2257648849.

It is not an unprimeable number, because it can be changed into a prime (2257648829) 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, 85474 + ... + 108724.

It is an arithmetic number, because the mean of its divisors is an integer number (285650820).

Almost surely, 2^2257648849 is an apocalyptic number.

It is an amenable number.

2257648849 is a deficient number, since it is larger than the sum of its proper divisors (27557711).

2257648849 is a wasteful number, since it uses less digits than its factorization.

2257648849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24431.

The product of its digits is 7741440, while the sum is 55.

The square root of 2257648849 is about 47514.7224447329. The cubic root of 2257648849 is about 1311.8538810307.

The spelling of 2257648849 in words is "two billion, two hundred fifty-seven million, six hundred forty-eight thousand, eight hundred forty-nine".