242402287 has 2 divisors, whose sum is σ = 242402288. Its totient is φ = 242402286.

The previous prime is 242402219. The next prime is 242402297. The reversal of 242402287 is 782204242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242402287 - 2⁷ = 242402159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242402297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121201143 + 121201144.

It is an arithmetic number, because the mean of its divisors is an integer number (121201144).

Almost surely, 2^242402287 is an apocalyptic number.

242402287 is a deficient number, since it is larger than the sum of its proper divisors (1).

242402287 is an equidigital number, since it uses as much as digits as its factorization.

242402287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 242402287 is about 15569.2738109393. The cubic root of 242402287 is about 623.5130835726.

The spelling of 242402287 in words is "two hundred forty-two million, four hundred two thousand, two hundred eighty-seven".