242222431 has 16 divisors (see below), whose sum is σ = 278899200. Its totient is φ = 208051200.

The previous prime is 242222423. The next prime is 242222441. The reversal of 242222431 is 134222242.

242222431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 242222431 - 2³ = 242222423 is a prime.

It is a super-2 number, since 2×242222431² = 117343412159099522, 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 (242222441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88735 + ... + 91423.

It is an arithmetic number, because the mean of its divisors is an integer number (17431200).

Almost surely, 2^242222431 is an apocalyptic number.

242222431 is a deficient number, since it is larger than the sum of its proper divisors (36676769).

242222431 is a wasteful number, since it uses less digits than its factorization.

242222431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150.

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

The square root of 242222431 is about 15563.4967471966. The cubic root of 242222431 is about 623.3588354181.

Adding to 242222431 its reverse (134222242), we get a palindrome (376444673).

The spelling of 242222431 in words is "two hundred forty-two million, two hundred twenty-two thousand, four hundred thirty-one".