2257908481 has 4 divisors (see below), whose sum is σ = 2259040000. Its totient is φ = 2256776964.

The previous prime is 2257908449. The next prime is 2257908487. The reversal of 2257908481 is 1848097522.

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 a cyclic number.

It is not a de Polignac number, because 2257908481 - 2⁵ = 2257908449 is a prime.

It is a super-2 number, since 2×2257908481² = 10196301417143454722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257908487) 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, 562761 + ... + 566758.

It is an arithmetic number, because the mean of its divisors is an integer number (564760000).

Almost surely, 2^2257908481 is an apocalyptic number.

It is an amenable number.

2257908481 is a deficient number, since it is larger than the sum of its proper divisors (1131519).

2257908481 is a wasteful number, since it uses less digits than its factorization.

2257908481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131518.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 2257908481 is about 47517.4544877985. The cubic root of 2257908481 is about 1311.9041672966.

The spelling of 2257908481 in words is "two billion, two hundred fifty-seven million, nine hundred eight thousand, four hundred eighty-one".