243240400030 has 32 divisors (see below), whose sum is σ = 450692714304. Its totient is φ = 94476235776.

The previous prime is 243240399989. The next prime is 243240400031. The reversal of 243240400030 is 30004042342.

It is a junction number, because it is equal to n+sod(n) for n = 243240399974 and 243240400010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243240400031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2314282 + ... + 2417101.

It is an arithmetic number, because the mean of its divisors is an integer number (14084147322).

Almost surely, 2^243240400030 is an apocalyptic number.

243240400030 is a deficient number, since it is larger than the sum of its proper divisors (207452314274).

243240400030 is a wasteful number, since it uses less digits than its factorization.

243240400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731540.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 243240400030 its reverse (30004042342), we get a palindrome (273244442372).

The spelling of 243240400030 in words is "two hundred forty-three billion, two hundred forty million, four hundred thousand, thirty".