242400223 has 12 divisors (see below), whose sum is σ = 264747000. Its totient is φ = 220625856.

The previous prime is 242400199. The next prime is 242400239. The reversal of 242400223 is 322004242.

It is not a de Polignac number, because 242400223 - 2¹⁷ = 242269151 is a prime.

It is a super-2 number, since 2×242400223² = 117515736220899458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242400223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242400023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67528 + ... + 71026.

It is an arithmetic number, because the mean of its divisors is an integer number (22062250).

Almost surely, 2^242400223 is an apocalyptic number.

242400223 is a deficient number, since it is larger than the sum of its proper divisors (22346777).

242400223 is an equidigital number, since it uses as much as digits as its factorization.

242400223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 242400223 is about 15569.2075263965. The cubic root of 242400223 is about 623.5113138771.

Adding to 242400223 its reverse (322004242), we get a palindrome (564404465).

The spelling of 242400223 in words is "two hundred forty-two million, four hundred thousand, two hundred twenty-three".