4240205 has 8 divisors (see below), whose sum is σ = 5158392. Its totient is φ = 3345408.

The previous prime is 4240183. The next prime is 4240207. The reversal of 4240205 is 5020424.

It can be written as a sum of positive squares in 4 ways, for example, as 315844 + 3924361 = 562^2 + 1981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4240205 - 2¹² = 4236109 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 (4240207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5444 + ... + 6173.

It is an arithmetic number, because the mean of its divisors is an integer number (644799).

Almost surely, 2^4240205 is an apocalyptic number.

It is an amenable number.

4240205 is a deficient number, since it is larger than the sum of its proper divisors (918187).

4240205 is a wasteful number, since it uses less digits than its factorization.

4240205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11695.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4240205 is about 2059.1758059962. The cubic root of 4240205 is about 161.8560551364.

Adding to 4240205 its reverse (5020424), we get a palindrome (9260629).

The spelling of 4240205 in words is "four million, two hundred forty thousand, two hundred five".