243540125400 has 192 divisors, whose sum is σ = 886963230720. Its totient is φ = 54498470400.

The previous prime is 243540125399. The next prime is 243540125401. The reversal of 243540125400 is 4521045342.

243540125400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243540125399) and next prime (243540125401).

It is a super-3 number, since 3×243540125400³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243540125401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1333432 + ... + 1505031.

It is an arithmetic number, because the mean of its divisors is an integer number (4619600160).

Almost surely, 2^243540125400 is an apocalyptic number.

243540125400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243540125400 is an abundant number, since it is smaller than the sum of its proper divisors (643423105320).

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

243540125400 is a wasteful number, since it uses less digits than its factorization.

243540125400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838506 (or 2838497 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 243540125400 in words is "two hundred forty-three billion, five hundred forty million, one hundred twenty-five thousand, four hundred".