242805136 has 20 divisors (see below), whose sum is σ = 537640192. Its totient is φ = 104059296.

The previous prime is 242805127. The next prime is 242805151. The reversal of 242805136 is 631508242.

242805136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 242805098 and 242805107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083840 + ... + 1084063.

Almost surely, 2^242805136 is an apocalyptic number.

It is an amenable number.

242805136 is an abundant number, since it is smaller than the sum of its proper divisors (294835056).

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

242805136 is a wasteful number, since it uses less digits than its factorization.

242805136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167918 (or 2167912 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 242805136 is about 15582.2057488662. The cubic root of 242805136 is about 623.8582984179.

The spelling of 242805136 in words is "two hundred forty-two million, eight hundred five thousand, one hundred thirty-six".