3240257 has 4 divisors (see below), whose sum is σ = 3352020. Its totient is φ = 3128496.

The previous prime is 3240253. The next prime is 3240269. The reversal of 3240257 is 7520423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7520423 = 47 ⋅160009.

It can be written as a sum of positive squares in 2 ways, for example, as 1915456 + 1324801 = 1384^2 + 1151^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240257 - 2² = 3240253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240253) 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, 55838 + ... + 55895.

It is an arithmetic number, because the mean of its divisors is an integer number (838005).

Almost surely, 2^3240257 is an apocalyptic number.

It is an amenable number.

3240257 is a deficient number, since it is larger than the sum of its proper divisors (111763).

3240257 is a wasteful number, since it uses less digits than its factorization.

3240257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111762.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 3240257 is about 1800.0713874733. The cubic root of 3240257 is about 147.9766368039.

The spelling of 3240257 in words is "three million, two hundred forty thousand, two hundred fifty-seven".