242140940 has 48 divisors (see below), whose sum is σ = 536632320. Its totient is φ = 91523520.

The previous prime is 242140937. The next prime is 242140973. The reversal of 242140940 is 49041242.

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, 243845 + ... + 244835.

It is an arithmetic number, because the mean of its divisors is an integer number (11179840).

Almost surely, 2^242140940 is an apocalyptic number.

242140940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242140940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268316160).

242140940 is an abundant number, since it is smaller than the sum of its proper divisors (294491380).

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

242140940 is a wasteful number, since it uses less digits than its factorization.

242140940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 242140940 is about 15560.8785099043. The cubic root of 242140940 is about 623.2889219473.

The spelling of 242140940 in words is "two hundred forty-two million, one hundred forty thousand, nine hundred forty".