2257722 has 12 divisors (see below), whose sum is σ = 4891770. Its totient is φ = 752568.

The previous prime is 2257721. The next prime is 2257733. The reversal of 2257722 is 2277522.

It is a happy number.

2257722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2134521 + 123201 = 1461^2 + 351^2 .

It is not an unprimeable number, because it can be changed into a prime (2257721) 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 5 ways as a sum of consecutive naturals, for example, 62697 + ... + 62732.

2^2257722 is an apocalyptic number.

2257722 is an abundant number, since it is smaller than the sum of its proper divisors (2634048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2257722 is a wasteful number, since it uses less digits than its factorization.

2257722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125437 (or 125434 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 2257722 is about 1502.5717952897. The cubic root of 2257722 is about 131.1868049515.

It can be divided in two parts, 22577 and 22, that multiplied together give a palindrome (496694).

The spelling of 2257722 in words is "two million, two hundred fifty-seven thousand, seven hundred twenty-two".