243252402 has 16 divisors (see below), whose sum is σ = 512110560. Its totient is φ = 76816512.

The previous prime is 243252379. The next prime is 243252403. The reversal of 243252402 is 204252342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243252403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066783 + ... + 1067010.

It is an arithmetic number, because the mean of its divisors is an integer number (32006910).

Almost surely, 2^243252402 is an apocalyptic number.

243252402 is an abundant number, since it is smaller than the sum of its proper divisors (268858158).

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

243252402 is a wasteful number, since it uses less digits than its factorization.

243252402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133817.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 243252402 is about 15596.5509648768. The cubic root of 243252402 is about 624.2411286625.

The spelling of 243252402 in words is "two hundred forty-three million, two hundred fifty-two thousand, four hundred two".