242204420 has 12 divisors (see below), whose sum is σ = 508629324. Its totient is φ = 96881760.

The previous prime is 242204393. The next prime is 242204447. The reversal of 242204420 is 24402242.

It is an interprime number because it is at equal distance from previous prime (242204393) and next prime (242204447).

It can be written as a sum of positive squares in 2 ways, for example, as 183006784 + 59197636 = 13528^2 + 7694^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 12110221 = 242204420 / (2 + 4 + 2 + 2 + 0 + 4 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 242204392 and 242204401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6055091 + ... + 6055130.

It is an arithmetic number, because the mean of its divisors is an integer number (42385777).

Almost surely, 2^242204420 is an apocalyptic number.

242204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242204420 is an abundant number, since it is smaller than the sum of its proper divisors (266424904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242204420 is a wasteful number, since it uses less digits than its factorization.

242204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12110230 (or 12110228 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 242204420 is about 15562.9181068333. The cubic root of 242204420 is about 623.3433846136.

Adding to 242204420 its reverse (24402242), we get a palindrome (266606662).

The spelling of 242204420 in words is "two hundred forty-two million, two hundred four thousand, four hundred twenty".