243042000 has 80 divisors (see below), whose sum is σ = 783586752. Its totient is φ = 64809600.

The previous prime is 243041983. The next prime is 243042089. The reversal of 243042000 is 240342.

It is a happy number.

243042000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 14254 + ... + 26253.

Almost surely, 2^243042000 is an apocalyptic number.

243042000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243042000 is an abundant number, since it is smaller than the sum of its proper divisors (540544752).

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

243042000 is a wasteful number, since it uses less digits than its factorization.

243042000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40533 (or 40517 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 243042000 is about 15589.8043605428. The cubic root of 243042000 is about 624.0610969105.

Adding to 243042000 its reverse (240342), we get a palindrome (243282342).

The spelling of 243042000 in words is "two hundred forty-three million, forty-two thousand".