242604431 has 2 divisors, whose sum is σ = 242604432. Its totient is φ = 242604430.

The previous prime is 242604371. The next prime is 242604443. The reversal of 242604431 is 134406242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242604431 - 2⁶ = 242604367 is a prime.

It is a super-2 number, since 2×242604431² = 117713819881667522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242604431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242604451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121302215 + 121302216.

It is an arithmetic number, because the mean of its divisors is an integer number (121302216).

Almost surely, 2^242604431 is an apocalyptic number.

242604431 is a deficient number, since it is larger than the sum of its proper divisors (1).

242604431 is an equidigital number, since it uses as much as digits as its factorization.

242604431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 242604431 is about 15575.7642188112. The cubic root of 242604431 is about 623.6863553280.

The spelling of 242604431 in words is "two hundred forty-two million, six hundred four thousand, four hundred thirty-one".