243140300202400 has 144 divisors (see below), whose sum is σ = 612726430998528. Its totient is φ = 94116848256000.

The previous prime is 243140300202383. The next prime is 243140300202427. The reversal of 243140300202400 is 4202003041342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1850584710 + ... + 1850716090.

It is an arithmetic number, because the mean of its divisors is an integer number (4255044659712).

Almost surely, 2^{243140300202400} is an apocalyptic number.

243140300202400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243140300202400 is an abundant number, since it is smaller than the sum of its proper divisors (369586130796128).

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

243140300202400 is a wasteful number, since it uses less digits than its factorization.

243140300202400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206055 (or 206042 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 243140300202400 its reverse (4202003041342), we get a palindrome (247342303243742).

The spelling of 243140300202400 in words is "two hundred forty-three trillion, one hundred forty billion, three hundred million, two hundred two thousand, four hundred".