242400219 has 4 divisors (see below), whose sum is σ = 323200296. Its totient is φ = 161600144.

The previous prime is 242400199. The next prime is 242400239. The reversal of 242400219 is 912004242.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (242400199) and next prime (242400239).

It is a cyclic number.

It is not a de Polignac number, because 242400219 - 2²¹ = 240303067 is a prime.

It is a super-2 number, since 2×242400219² = 117515732342495922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242400239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40400034 + ... + 40400039.

It is an arithmetic number, because the mean of its divisors is an integer number (80800074).

Almost surely, 2^242400219 is an apocalyptic number.

242400219 is a deficient number, since it is larger than the sum of its proper divisors (80800077).

242400219 is an equidigital number, since it uses as much as digits as its factorization.

242400219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80800076.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 242400219 is about 15569.2073979378. The cubic root of 242400219 is about 623.5113104475.

The spelling of 242400219 in words is "two hundred forty-two million, four hundred thousand, two hundred nineteen".