242748890 has 32 divisors (see below), whose sum is σ = 453613824. Its totient is φ = 93464640.

The previous prime is 242748887. The next prime is 242748949. The reversal of 242748890 is 98847242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24437 + ... + 32903.

It is an arithmetic number, because the mean of its divisors is an integer number (14175432).

Almost surely, 2^242748890 is an apocalyptic number.

242748890 is a deficient number, since it is larger than the sum of its proper divisors (210864934).

242748890 is a wasteful number, since it uses less digits than its factorization.

242748890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 242748890 is about 15580.4008292470. The cubic root of 242748890 is about 623.8101222765.

The spelling of 242748890 in words is "two hundred forty-two million, seven hundred forty-eight thousand, eight hundred ninety".