242354431 has 16 divisors (see below), whose sum is σ = 281691648. Its totient is φ = 206064000.

The previous prime is 242354417. The next prime is 242354447. The reversal of 242354431 is 134453242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242354431 - 2¹⁵ = 242321663 is a prime.

It is a super-2 number, since 2×242354431² = 117471340450667522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242354431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242354401) 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, 26506 + ... + 34456.

It is an arithmetic number, because the mean of its divisors is an integer number (17605728).

Almost surely, 2^242354431 is an apocalyptic number.

242354431 is a deficient number, since it is larger than the sum of its proper divisors (39337217).

242354431 is a wasteful number, since it uses less digits than its factorization.

242354431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8142.

The product of its digits is 11520, while the sum is 28.

The square root of 242354431 is about 15567.7368618563. The cubic root of 242354431 is about 623.4720487480.

The spelling of 242354431 in words is "two hundred forty-two million, three hundred fifty-four thousand, four hundred thirty-one".