242278925 has 24 divisors (see below), whose sum is σ = 344323200. Its totient is φ = 165660480.

The previous prime is 242278913. The next prime is 242278961. The reversal of 242278925 is 529872242.

It is not a de Polignac number, because 242278925 - 2¹⁰ = 242277901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66296 + ... + 69854.

It is an arithmetic number, because the mean of its divisors is an integer number (14346800).

Almost surely, 2^242278925 is an apocalyptic number.

242278925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242278925 is a deficient number, since it is larger than the sum of its proper divisors (102044275).

242278925 is a wasteful number, since it uses less digits than its factorization.

242278925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965 (or 3960 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 242278925 is about 15565.3115934118. The cubic root of 242278925 is about 623.4072940414.

The spelling of 242278925 in words is "two hundred forty-two million, two hundred seventy-eight thousand, nine hundred twenty-five".