2257840426 has 8 divisors (see below), whose sum is σ = 3458819520. Its totient is φ = 1104900588.

The previous prime is 2257840411. The next prime is 2257840463. The reversal of 2257840426 is 6240487522.

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

It is a super-2 number, since 2×2257840426² = 10195686778559722952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12009696 + ... + 12009883.

It is an arithmetic number, because the mean of its divisors is an integer number (432352440).

Almost surely, 2^2257840426 is an apocalyptic number.

2257840426 is a deficient number, since it is larger than the sum of its proper divisors (1200979094).

2257840426 is a wasteful number, since it uses less digits than its factorization.

2257840426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24019628.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 2257840426 is about 47516.7383771235. The cubic root of 2257840426 is about 1311.8909865830.

The spelling of 2257840426 in words is "two billion, two hundred fifty-seven million, eight hundred forty thousand, four hundred twenty-six".