242422728 has 64 divisors (see below), whose sum is σ = 629760000. Its totient is φ = 77682240.

The previous prime is 242422721. The next prime is 242422751. The reversal of 242422728 is 827224242.

242422728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (242422721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120273 + ... + 122271.

It is an arithmetic number, because the mean of its divisors is an integer number (9840000).

Almost surely, 2^242422728 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 242422728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314880000).

242422728 is an abundant number, since it is smaller than the sum of its proper divisors (387337272).

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

242422728 is a wasteful number, since it uses less digits than its factorization.

242422728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2198 counting only the distinct ones).

The product of its digits is 28672, while the sum is 33.

The square root of 242422728 is about 15569.9302503255. The cubic root of 242422728 is about 623.5306093598.

It can be divided in two parts, 2424 and 22728, that added together give a palindrome (25152).

The spelling of 242422728 in words is "two hundred forty-two million, four hundred twenty-two thousand, seven hundred twenty-eight".