3440237 has 2 divisors, whose sum is σ = 3440238. Its totient is φ = 3440236.

The previous prime is 3440209. The next prime is 3440243. The reversal of 3440237 is 7320443.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2468041 + 972196 = 1571^2 + 986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3440237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720118 + 1720119.

It is an arithmetic number, because the mean of its divisors is an integer number (1720119).

Almost surely, 2^3440237 is an apocalyptic number.

It is an amenable number.

3440237 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440237 is an equidigital number, since it uses as much as digits as its factorization.

3440237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 3440237 is about 1854.7875889169. The cubic root of 3440237 is about 150.9603129477.

The spelling of 3440237 in words is "three million, four hundred forty thousand, two hundred thirty-seven".