242225405 has 8 divisors (see below), whose sum is σ = 290795832. Its totient is φ = 193696768.

The previous prime is 242225381. The next prime is 242225411. The reversal of 242225405 is 504522242.

242225405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 49182169 + 193043236 = 7013^2 + 13894^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242225405 - 2⁶ = 242225341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4169 + ... + 22401.

It is an arithmetic number, because the mean of its divisors is an integer number (36349479).

Almost surely, 2^242225405 is an apocalyptic number.

It is an amenable number.

242225405 is a deficient number, since it is larger than the sum of its proper divisors (48570427).

242225405 is a wasteful number, since it uses less digits than its factorization.

242225405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20895.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 242225405 is about 15563.5922909848. The cubic root of 242225405 is about 623.3613866016.

Adding to 242225405 its reverse (504522242), we get a palindrome (746747647).

The spelling of 242225405 in words is "two hundred forty-two million, two hundred twenty-five thousand, four hundred five".