2257756 has 12 divisors (see below), whose sum is σ = 3963960. Its totient is φ = 1125200.

The previous prime is 2257733. The next prime is 2257757. The reversal of 2257756 is 6577522.

It is a happy number.

2257756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2¹⁵ + 2²¹ + 5 + 7⁴ + 7⁶ + 5 + 6⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257757) 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, 831 + ... + 2281.

It is an arithmetic number, because the mean of its divisors is an integer number (330330).

2^2257756 is an apocalyptic number.

It is an amenable number.

2257756 is a deficient number, since it is larger than the sum of its proper divisors (1706204).

2257756 is a wasteful number, since it uses less digits than its factorization.

2257756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844 (or 1842 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 2257756 is about 1502.5831091823. The cubic root of 2257756 is about 131.1874634809.

The spelling of 2257756 in words is "two million, two hundred fifty-seven thousand, seven hundred fifty-six".