242749769 has 2 divisors, whose sum is σ = 242749770. Its totient is φ = 242749768.

The previous prime is 242749753. The next prime is 242749799. The reversal of 242749769 is 967947242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131974144 + 110775625 = 11488^2 + 10525^2 .

It is a cyclic number.

It is not a de Polignac number, because 242749769 - 2⁴ = 242749753 is a prime.

It is a super-2 number, since 2×242749769² = 117854900699106722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242749709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121374884 + 121374885.

It is an arithmetic number, because the mean of its divisors is an integer number (121374885).

Almost surely, 2^242749769 is an apocalyptic number.

It is an amenable number.

242749769 is a deficient number, since it is larger than the sum of its proper divisors (1).

242749769 is an equidigital number, since it uses as much as digits as its factorization.

242749769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The square root of 242749769 is about 15580.4290377383. The cubic root of 242749769 is about 623.8108752198.

It can be divided in two parts, 24274 and 9769, that added together give a palindrome (34043).

The spelling of 242749769 in words is "two hundred forty-two million, seven hundred forty-nine thousand, seven hundred sixty-nine".