242647250 has 32 divisors (see below), whose sum is σ = 462831408. Its totient is φ = 95222400.

The previous prime is 242647247. The next prime is 242647253. The reversal of 242647250 is 52746242.

It is an interprime number because it is at equal distance from previous prime (242647247) and next prime (242647253).

It can be written as a sum of positive squares in 8 ways, for example, as 6195121 + 236452129 = 2489^2 + 15377^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242647253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4094 + ... + 22406.

Almost surely, 2^242647250 is an apocalyptic number.

242647250 is a deficient number, since it is larger than the sum of its proper divisors (220184158).

242647250 is a wasteful number, since it uses less digits than its factorization.

242647250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18383 (or 18373 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 242647250 is about 15577.1386974630. The cubic root of 242647250 is about 623.7230461323.

The spelling of 242647250 in words is "two hundred forty-two million, six hundred forty-seven thousand, two hundred fifty".