243142092 has 144 divisors (see below), whose sum is σ = 679311360. Its totient is φ = 73022976.

The previous prime is 243142087. The next prime is 243142103. The reversal of 243142092 is 290241342.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2272303 + ... + 2272409.

It is an arithmetic number, because the mean of its divisors is an integer number (4717440).

Almost surely, 2^243142092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243142092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339655680).

243142092 is an abundant number, since it is smaller than the sum of its proper divisors (436169268).

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

243142092 is a wasteful number, since it uses less digits than its factorization.

243142092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 243142092 is about 15593.0142050856. The cubic root of 243142092 is about 624.1467541913.

The spelling of 243142092 in words is "two hundred forty-three million, one hundred forty-two thousand, ninety-two".