242140052 has 96 divisors (see below), whose sum is σ = 553512960. Its totient is φ = 89953920.

The previous prime is 242139991. The next prime is 242140057. The reversal of 242140052 is 250041242.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242140057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622274 + ... + 622662.

It is an arithmetic number, because the mean of its divisors is an integer number (5765760).

Almost surely, 2^242140052 is an apocalyptic number.

242140052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242140052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276756480).

242140052 is an abundant number, since it is smaller than the sum of its proper divisors (311372908).

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

242140052 is a wasteful number, since it uses less digits than its factorization.

242140052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 242140052 is about 15560.8499767847. The cubic root of 242140052 is about 623.2881600202.

Adding to 242140052 its reverse (250041242), we get a palindrome (492181294).

The spelling of 242140052 in words is "two hundred forty-two million, one hundred forty thousand, fifty-two".