2257307698 has 4 divisors (see below), whose sum is σ = 3385961550. Its totient is φ = 1128653848.

The previous prime is 2257307677. The next prime is 2257307707. The reversal of 2257307698 is 8967037522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8967037522 = 2 ⋅4483518761.

It can be written as a sum of positive squares in only one way, i.e., 1610978769 + 646328929 = 40137^2 + 25423^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 564326923 + ... + 564326926.

Almost surely, 2^2257307698 is an apocalyptic number.

2257307698 is a deficient number, since it is larger than the sum of its proper divisors (1128653852).

2257307698 is a wasteful number, since it uses less digits than its factorization.

2257307698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128653851.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 2257307698 is about 47511.1323586378. The cubic root of 2257307698 is about 1311.7878000710.

The spelling of 2257307698 in words is "two billion, two hundred fifty-seven million, three hundred seven thousand, six hundred ninety-eight".