242044421 has 8 divisors (see below), whose sum is σ = 245738904. Its totient is φ = 238360320.

The previous prime is 242044409. The next prime is 242044457. The reversal of 242044421 is 124440242.

242044421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43375396 + 198669025 = 6586^2 + 14095^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242044421 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 (242044321) 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, 53375 + ... + 57731.

It is an arithmetic number, because the mean of its divisors is an integer number (30717363).

Almost surely, 2^242044421 is an apocalyptic number.

It is an amenable number.

242044421 is a deficient number, since it is larger than the sum of its proper divisors (3694483).

242044421 is an equidigital number, since it uses as much as digits as its factorization.

242044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 242044421 is about 15557.7768656065. The cubic root of 242044421 is about 623.2060952287.

Adding to 242044421 its reverse (124440242), we get a palindrome (366484663).

The spelling of 242044421 in words is "two hundred forty-two million, forty-four thousand, four hundred twenty-one".