242020001 has 4 divisors (see below), whose sum is σ = 245987604. Its totient is φ = 238052400.

The previous prime is 242019991. The next prime is 242020057. The reversal of 242020001 is 100020242.

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 91221601 + 150798400 = 9551^2 + 12280^2 .

It is a cyclic number.

It is not a de Polignac number, because 242020001 - 2¹⁴ = 242003617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242020091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983710 + ... + 1983831.

It is an arithmetic number, because the mean of its divisors is an integer number (61496901).

Almost surely, 2^242020001 is an apocalyptic number.

It is an amenable number.

242020001 is a deficient number, since it is larger than the sum of its proper divisors (3967603).

242020001 is an equidigital number, since it uses as much as digits as its factorization.

242020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967602.

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

The square root of 242020001 is about 15556.9920293095. The cubic root of 242020001 is about 623.1851359840.

Adding to 242020001 its reverse (100020242), we get a palindrome (342040243).

The spelling of 242020001 in words is "two hundred forty-two million, twenty thousand, one".