242997425 has 12 divisors (see below), whose sum is σ = 328709616. Its totient is φ = 176725200.

The previous prime is 242997383. The next prime is 242997431. The reversal of 242997425 is 524799242.

It is a happy number.

It is not a de Polignac number, because 242997425 - 2⁸ = 242997169 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 441539 + ... + 442088.

It is an arithmetic number, because the mean of its divisors is an integer number (27392468).

Almost surely, 2^242997425 is an apocalyptic number.

242997425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242997425 is a deficient number, since it is larger than the sum of its proper divisors (85712191).

242997425 is a wasteful number, since it uses less digits than its factorization.

242997425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883648 (or 883643 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 242997425 is about 15588.3746747376. The cubic root of 242997425 is about 624.0229427037.

The spelling of 242997425 in words is "two hundred forty-two million, nine hundred ninety-seven thousand, four hundred twenty-five".