243200540502 has 32 divisors (see below), whose sum is σ = 546957048960. Its totient is φ = 80090136360.

The previous prime is 243200540491. The next prime is 243200540503. The reversal of 243200540502 is 205045002342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243200540503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27126324 + ... + 27135287.

It is an arithmetic number, because the mean of its divisors is an integer number (17092407780).

Almost surely, 2^243200540502 is an apocalyptic number.

243200540502 is an abundant number, since it is smaller than the sum of its proper divisors (303756508458).

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

243200540502 is a wasteful number, since it uses less digits than its factorization.

243200540502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54261705 (or 54261699 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 243200540502 its reverse (205045002342), we get a palindrome (448245542844).

The spelling of 243200540502 in words is "two hundred forty-three billion, two hundred million, five hundred forty thousand, five hundred two".