242739136 has 28 divisors (see below), whose sum is σ = 507039880. Its totient is φ = 114981120.

The previous prime is 242739127. The next prime is 242739151. The reversal of 242739136 is 631937242.

It is a junction number, because it is equal to n+sod(n) for n = 242739095 and 242739104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98595 + ... + 101026.

Almost surely, 2^242739136 is an apocalyptic number.

It is an amenable number.

242739136 is an abundant number, since it is smaller than the sum of its proper divisors (264300744).

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

242739136 is a wasteful number, since it uses less digits than its factorization.

242739136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199652 (or 199642 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 242739136 is about 15580.0878046306. The cubic root of 242739136 is about 623.8017669682.

The spelling of 242739136 in words is "two hundred forty-two million, seven hundred thirty-nine thousand, one hundred thirty-six".