242687616 has 64 divisors (see below), whose sum is σ = 646312800. Its totient is φ = 80686080.

The previous prime is 242687609. The next prime is 242687647. The reversal of 242687616 is 616786242.

242687616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

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, 237186 + ... + 238206.

Almost surely, 2^242687616 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 242687616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323156400).

242687616 is an abundant number, since it is smaller than the sum of its proper divisors (403625184).

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

242687616 is a wasteful number, since it uses less digits than its factorization.

242687616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657 (or 1645 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 242687616 is about 15578.4343244114. The cubic root of 242687616 is about 623.7576310540.

The spelling of 242687616 in words is "two hundred forty-two million, six hundred eighty-seven thousand, six hundred sixteen".