242891940 has 24 divisors (see below), whose sum is σ = 680097600. Its totient is φ = 64771168.

The previous prime is 242891927. The next prime is 242891959. The reversal of 242891940 is 49198242.

242891940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024040 + ... + 2024159.

It is an arithmetic number, because the mean of its divisors is an integer number (28337400).

Almost surely, 2^242891940 is an apocalyptic number.

242891940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242891940 is an abundant number, since it is smaller than the sum of its proper divisors (437205660).

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

242891940 is a wasteful number, since it uses less digits than its factorization.

242891940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048211 (or 4048209 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 242891940 is about 15584.9908565902. The cubic root of 242891940 is about 623.9326336709.

The spelling of 242891940 in words is "two hundred forty-two million, eight hundred ninety-one thousand, nine hundred forty".