439140241 has 2 divisors, whose sum is σ = 439140242. Its totient is φ = 439140240.

The previous prime is 439140239. The next prime is 439140253. The reversal of 439140241 is 142041934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265559616 + 173580625 = 16296^2 + 13175^2 .

It is a cyclic number.

It is not a de Polignac number, because 439140241 - 2¹ = 439140239 is a prime.

Together with 439140239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (439140271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219570120 + 219570121.

It is an arithmetic number, because the mean of its divisors is an integer number (219570121).

Almost surely, 2^439140241 is an apocalyptic number.

It is an amenable number.

439140241 is a deficient number, since it is larger than the sum of its proper divisors (1).

439140241 is an equidigital number, since it uses as much as digits as its factorization.

439140241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 439140241 is about 20955.6732413922. The cubic root of 439140241 is about 760.0947717688.

The spelling of 439140241 in words is "four hundred thirty-nine million, one hundred forty thousand, two hundred forty-one".