2256984371 has 4 divisors (see below), whose sum is σ = 2263681992. Its totient is φ = 2250286752.

The previous prime is 2256984361. The next prime is 2256984409. The reversal of 2256984371 is 1734896522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2256984371 - 2³⁰ = 1183242547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256984361) 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, 3348305 + ... + 3348978.

It is an arithmetic number, because the mean of its divisors is an integer number (565920498).

Almost surely, 2^2256984371 is an apocalyptic number.

2256984371 is a deficient number, since it is larger than the sum of its proper divisors (6697621).

2256984371 is an equidigital number, since it uses as much as digits as its factorization.

2256984371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697620.

The product of its digits is 725760, while the sum is 47.

The square root of 2256984371 is about 47507.7295921411. The cubic root of 2256984371 is about 1311.7251654751.

The spelling of 2256984371 in words is "two billion, two hundred fifty-six million, nine hundred eighty-four thousand, three hundred seventy-one".