243242004 has 12 divisors (see below), whose sum is σ = 567564704. Its totient is φ = 81080664.

The previous prime is 243241991. The next prime is 243242017. The reversal of 243242004 is 400242342.

It is an interprime number because it is at equal distance from previous prime (243241991) and next prime (243242017).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10135072 + ... + 10135095.

Almost surely, 2^243242004 is an apocalyptic number.

It is an amenable number.

243242004 is an abundant number, since it is smaller than the sum of its proper divisors (324322700).

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

243242004 is a wasteful number, since it uses less digits than its factorization.

243242004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20270174 (or 20270172 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 243242004 is about 15596.2176183843. The cubic root of 243242004 is about 624.2322339894.

Adding to 243242004 its reverse (400242342), we get a palindrome (643484346).

The spelling of 243242004 in words is "two hundred forty-three million, two hundred forty-two thousand, four".