2257393 has 4 divisors (see below), whose sum is σ = 2260468. Its totient is φ = 2254320.

The previous prime is 2257391. The next prime is 2257397. The reversal of 2257393 is 3937522.

2257393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31329 + 2226064 = 177^2 + 1492^2 .

It is a cyclic number.

It is not a de Polignac number, because 2257393 - 2¹ = 2257391 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 5 + 7³ + 3¹² + 9² + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (565117).

2^2257393 is an apocalyptic number.

It is an amenable number.

2257393 is a deficient number, since it is larger than the sum of its proper divisors (3075).

2257393 is a wasteful number, since it uses less digits than its factorization.

2257393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074.

The product of its digits is 11340, while the sum is 31.

The square root of 2257393 is about 1502.4623123393. The cubic root of 2257393 is about 131.1804323695.

The spelling of 2257393 in words is "two million, two hundred fifty-seven thousand, three hundred ninety-three".