242690688 has 64 divisors (see below), whose sum is σ = 716284800. Its totient is φ = 80895744.

The previous prime is 242690681. The next prime is 242690699. The reversal of 242690688 is 886096242.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242690681) 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 7 ways as a sum of consecutive naturals, for example, 31656 + ... + 38567.

It is an arithmetic number, because the mean of its divisors is an integer number (11191950).

Almost surely, 2^242690688 is an apocalyptic number.

It is an amenable number.

242690688 is an abundant number, since it is smaller than the sum of its proper divisors (473594112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242690688 is an equidigital number, since it uses as much as digits as its factorization.

242690688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70246 (or 70228 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 242690688 is about 15578.5329219410. The cubic root of 242690688 is about 623.7602629358.

The spelling of 242690688 in words is "two hundred forty-two million, six hundred ninety thousand, six hundred eighty-eight".