242940856 has 16 divisors (see below), whose sum is σ = 455687640. Its totient is φ = 121424160.

The previous prime is 242940851. The next prime is 242940869. The reversal of 242940856 is 658049242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242940851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28446 + ... + 35986.

Almost surely, 2^242940856 is an apocalyptic number.

It is an amenable number.

242940856 is a deficient number, since it is larger than the sum of its proper divisors (212746784).

242940856 is a wasteful number, since it uses less digits than its factorization.

242940856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11574 (or 11570 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 242940856 is about 15586.5601079905. The cubic root of 242940856 is about 623.9745154506.

The spelling of 242940856 in words is "two hundred forty-two million, nine hundred forty thousand, eight hundred fifty-six".