242204431 has 8 divisors (see below), whose sum is σ = 279345440. Its totient is φ = 205698528.

The previous prime is 242204393. The next prime is 242204447. The reversal of 242204431 is 134402242.

It is a happy number.

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

It is not a de Polignac number, because 242204431 - 2²³ = 233815823 is a prime.

It is a super-2 number, since 2×242204431² = 117325972792067522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242207431) 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, 157956 + ... + 159481.

It is an arithmetic number, because the mean of its divisors is an integer number (34918180).

Almost surely, 2^242204431 is an apocalyptic number.

242204431 is a deficient number, since it is larger than the sum of its proper divisors (37141009).

242204431 is a wasteful number, since it uses less digits than its factorization.

242204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317553.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242204431 is about 15562.9184602375. The cubic root of 242204431 is about 623.3433940503.

Adding to 242204431 its reverse (134402242), we get a palindrome (376606673).

The spelling of 242204431 in words is "two hundred forty-two million, two hundred four thousand, four hundred thirty-one".