242253305 has 12 divisors (see below), whose sum is σ = 338166180. Its totient is φ = 166116384.

The previous prime is 242253293. The next prime is 242253311. The reversal of 242253305 is 503352242.

It can be written as a sum of positive squares in 2 ways, for example, as 161594944 + 80658361 = 12712^2 + 8981^2 .

It is not a de Polignac number, because 242253305 - 2⁸ = 242253049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494150 + ... + 494639.

It is an arithmetic number, because the mean of its divisors is an integer number (28180515).

Almost surely, 2^242253305 is an apocalyptic number.

It is an amenable number.

242253305 is a deficient number, since it is larger than the sum of its proper divisors (95912875).

242253305 is an equidigital number, since it uses as much as digits as its factorization.

242253305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988808 (or 988801 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 242253305 is about 15564.4885878078. The cubic root of 242253305 is about 623.3853190142.

The spelling of 242253305 in words is "two hundred forty-two million, two hundred fifty-three thousand, three hundred five".