242140024 has 32 divisors (see below), whose sum is σ = 536767200. Its totient is φ = 100195200.

The previous prime is 242139991. The next prime is 242140057. The reversal of 242140024 is 420041242.

It is an interprime number because it is at equal distance from previous prime (242139991) and next prime (242140057).

It is a junction number, because it is equal to n+sod(n) for n = 242139983 and 242140010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72927 + ... + 76174.

It is an arithmetic number, because the mean of its divisors is an integer number (16773975).

Almost surely, 2^242140024 is an apocalyptic number.

It is an amenable number.

242140024 is an abundant number, since it is smaller than the sum of its proper divisors (294627176).

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

242140024 is a wasteful number, since it uses less digits than its factorization.

242140024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149143 (or 149139 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 242140024 is about 15560.8490770909. The cubic root of 242140024 is about 623.2881359954.

Adding to 242140024 its reverse (420041242), we get a palindrome (662181266).

The spelling of 242140024 in words is "two hundred forty-two million, one hundred forty thousand, twenty-four".