243201015400 has 48 divisors (see below), whose sum is σ = 646219844640. Its totient is φ = 83383204800.

The previous prime is 243201015397. The next prime is 243201015413. The reversal of 243201015400 is 4510102342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86856106 + ... + 86858905.

It is an arithmetic number, because the mean of its divisors is an integer number (13462913430).

Almost surely, 2^243201015400 is an apocalyptic number.

243201015400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243201015400 is an abundant number, since it is smaller than the sum of its proper divisors (403018829240).

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

243201015400 is a wasteful number, since it uses less digits than its factorization.

243201015400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173715034 (or 173715025 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 243201015400 its reverse (4510102342), we get a palindrome (247711117742).

The spelling of 243201015400 in words is "two hundred forty-three billion, two hundred one million, fifteen thousand, four hundred".