242128110 has 96 divisors (see below), whose sum is σ = 715819680. Its totient is φ = 52082688.

The previous prime is 242128091. The next prime is 242128171. The reversal of 242128110 is 11821242.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 20146 + ... + 29834.

It is an arithmetic number, because the mean of its divisors is an integer number (7456455).

Almost surely, 2^242128110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242128110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357909840).

242128110 is an abundant number, since it is smaller than the sum of its proper divisors (473691570).

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

242128110 is a wasteful number, since it uses less digits than its factorization.

242128110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9730 (or 9723 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 242128110 is about 15560.4662526545. The cubic root of 242128110 is about 623.2779132924.

Adding to 242128110 its reverse (11821242), we get a palindrome (253949352).

The spelling of 242128110 in words is "two hundred forty-two million, one hundred twenty-eight thousand, one hundred ten".