242231431 has 8 divisors (see below), whose sum is σ = 263448864. Its totient is φ = 221383200.

The previous prime is 242231393. The next prime is 242231441. The reversal of 242231431 is 134132242.

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-242231431 is a prime.

It is a super-2 number, since 2×242231431² = 117352132328615522, 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 (242231441) 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, 90931 + ... + 93556.

It is an arithmetic number, because the mean of its divisors is an integer number (32931108).

Almost surely, 2^242231431 is an apocalyptic number.

242231431 is a deficient number, since it is larger than the sum of its proper divisors (21217433).

242231431 is a wasteful number, since it uses less digits than its factorization.

242231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184601.

The product of its digits is 1152, while the sum is 22.

The square root of 242231431 is about 15563.7858826187. The cubic root of 242231431 is about 623.3665558152.

Adding to 242231431 its reverse (134132242), we get a palindrome (376363673).

The spelling of 242231431 in words is "two hundred forty-two million, two hundred thirty-one thousand, four hundred thirty-one".