242839512 has 64 divisors (see below), whose sum is σ = 675945600. Its totient is φ = 80779680.

The previous prime is 242839511. The next prime is 242839517. The reversal of 242839512 is 215938242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242839511) 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, 148443 + ... + 150069.

It is an arithmetic number, because the mean of its divisors is an integer number (10561650).

Almost surely, 2^242839512 is an apocalyptic number.

It is an amenable number.

242839512 is an abundant number, since it is smaller than the sum of its proper divisors (433106088).

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

242839512 is a wasteful number, since it uses less digits than its factorization.

242839512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333 (or 2323 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 242839512 is about 15583.3087629040. The cubic root of 242839512 is about 623.8877386805.

The spelling of 242839512 in words is "two hundred forty-two million, eight hundred thirty-nine thousand, five hundred twelve".