242684728 has 64 divisors (see below), whose sum is σ = 537102720. Its totient is φ = 101347200.

The previous prime is 242684693. The next prime is 242684737. The reversal of 242684728 is 827486242.

Its product of digits (344064) is a multiple of the sum of its prime divisors (1024).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350863 + ... + 351553.

It is an arithmetic number, because the mean of its divisors is an integer number (8392230).

Almost surely, 2^242684728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242684728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268551360).

242684728 is an abundant number, since it is smaller than the sum of its proper divisors (294417992).

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

242684728 is a wasteful number, since it uses less digits than its factorization.

242684728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1024 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 242684728 is about 15578.3416318939. The cubic root of 242684728 is about 623.7551567907.

The spelling of 242684728 in words is "two hundred forty-two million, six hundred eighty-four thousand, seven hundred twenty-eight".