243403120 has 40 divisors (see below), whose sum is σ = 570392064. Its totient is φ = 96590592.

The previous prime is 243403099. The next prime is 243403141. The reversal of 243403120 is 21304342.

243403120 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 (243403099) and next prime (243403141).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819 + ... + 22138.

Almost surely, 2^243403120 is an apocalyptic number.

243403120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243403120 is an abundant number, since it is smaller than the sum of its proper divisors (326988944).

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

243403120 is a wasteful number, since it uses less digits than its factorization.

243403120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24097 (or 24091 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243403120 is about 15601.3819900674. The cubic root of 243403120 is about 624.3700276290.

Adding to 243403120 its reverse (21304342), we get a palindrome (264707462).

The spelling of 243403120 in words is "two hundred forty-three million, four hundred three thousand, one hundred twenty".