4240001 has 4 divisors (see below), whose sum is σ = 4252500. Its totient is φ = 4227504.

The previous prime is 4239997. The next prime is 4240007. The reversal of 4240001 is 1000424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3783025 + 456976 = 1945^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240001 - 2² = 4239997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4240007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5726 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (1063125).

Almost surely, 2^4240001 is an apocalyptic number.

It is an amenable number.

4240001 is a deficient number, since it is larger than the sum of its proper divisors (12499).

4240001 is a wasteful number, since it uses less digits than its factorization.

4240001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4240001 is about 2059.1262710189. The cubic root of 4240001 is about 161.8534594157.

Adding to 4240001 its reverse (1000424), we get a palindrome (5240425).

The spelling of 4240001 in words is "four million, two hundred forty thousand, one".