242931290 has 32 divisors (see below), whose sum is σ = 521475840. Its totient is φ = 79668864.

The previous prime is 242931251. The next prime is 242931301. The reversal of 242931290 is 92139242.

242931290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×242931290² = 118031223322128200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 73835 + ... + 77054.

It is an arithmetic number, because the mean of its divisors is an integer number (16296120).

Almost surely, 2^242931290 is an apocalyptic number.

242931290 is an abundant number, since it is smaller than the sum of its proper divisors (278544550).

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

242931290 is a wasteful number, since it uses less digits than its factorization.

242931290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150926.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 242931290 is about 15586.2532380300. The cubic root of 242931290 is about 623.9663255031.

The spelling of 242931290 in words is "two hundred forty-two million, nine hundred thirty-one thousand, two hundred ninety".