242389469 has 4 divisors (see below), whose sum is σ = 277016544. Its totient is φ = 207762396.

The previous prime is 242389463. The next prime is 242389471. The reversal of 242389469 is 964983242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242389469 is a prime.

It is a super-2 number, since 2×242389469² = 117505309364203922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242389463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17313527 + ... + 17313540.

It is an arithmetic number, because the mean of its divisors is an integer number (69254136).

Almost surely, 2^242389469 is an apocalyptic number.

It is an amenable number.

242389469 is a deficient number, since it is larger than the sum of its proper divisors (34627075).

242389469 is an equidigital number, since it uses as much as digits as its factorization.

242389469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34627074.

The product of its digits is 746496, while the sum is 47.

The square root of 242389469 is about 15568.8621613784. The cubic root of 242389469 is about 623.5020931213.

The spelling of 242389469 in words is "two hundred forty-two million, three hundred eighty-nine thousand, four hundred sixty-nine".