4242001 has 8 divisors (see below), whose sum is σ = 4345704. Its totient is φ = 4139520.

The previous prime is 4241989. The next prime is 4242019. The reversal of 4242001 is 1002424.

It can be written as a sum of positive squares in 4 ways, for example, as 540225 + 3701776 = 735^2 + 1924^2 .

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 4242001 - 2⁷ = 4241873 is a prime.

It is a Duffinian number.

4242001 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242031) 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, 11841 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (543213).

Almost surely, 2^4242001 is an apocalyptic number.

It is an amenable number.

4242001 is a deficient number, since it is larger than the sum of its proper divisors (103703).

4242001 is a wasteful number, since it uses less digits than its factorization.

4242001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4242001 is about 2059.6118566371. The cubic root of 4242001 is about 161.8789040665.

Adding to 4242001 its reverse (1002424), we get a palindrome (5244425).

The spelling of 4242001 in words is "four million, two hundred forty-two thousand, one".