243155314400 has 72 divisors (see below), whose sum is σ = 596195512920. Its totient is φ = 96837327360.

The previous prime is 243155314397. The next prime is 243155314417. The reversal of 243155314400 is 4413551342.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480434 + ... + 846833.

It is an arithmetic number, because the mean of its divisors is an integer number (8280493235).

Almost surely, 2^243155314400 is an apocalyptic number.

243155314400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243155314400 is an abundant number, since it is smaller than the sum of its proper divisors (353040198520).

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

243155314400 is a wasteful number, since it uses less digits than its factorization.

243155314400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327516 (or 1327503 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 243155314400 its reverse (4413551342), we get a palindrome (247568865742).

The spelling of 243155314400 in words is "two hundred forty-three billion, one hundred fifty-five million, three hundred fourteen thousand, four hundred".