240842237 has 2 divisors, whose sum is σ = 240842238. Its totient is φ = 240842236.

The previous prime is 240842227. The next prime is 240842249. The reversal of 240842237 is 732248042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125193721 + 115648516 = 11189^2 + 10754^2 .

It is a cyclic number.

It is not a de Polignac number, because 240842237 - 2⁴ = 240842221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240842207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120421118 + 120421119.

It is an arithmetic number, because the mean of its divisors is an integer number (120421119).

Almost surely, 2^240842237 is an apocalyptic number.

It is an amenable number.

240842237 is a deficient number, since it is larger than the sum of its proper divisors (1).

240842237 is an equidigital number, since it uses as much as digits as its factorization.

240842237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 240842237 is about 15519.0926603329. The cubic root of 240842237 is about 622.1726041937.

The spelling of 240842237 in words is "two hundred forty million, eight hundred forty-two thousand, two hundred thirty-seven".