243504452 has 12 divisors (see below), whose sum is σ = 426592236. Its totient is φ = 121620960.

The previous prime is 243504439. The next prime is 243504493. The reversal of 243504452 is 254405342.

It can be written as a sum of positive squares in 2 ways, for example, as 131652676 + 111851776 = 11474^2 + 10576^2 .

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, 28583 + ... + 36110.

It is an arithmetic number, because the mean of its divisors is an integer number (35549353).

Almost surely, 2^243504452 is an apocalyptic number.

It is an amenable number.

243504452 is a deficient number, since it is larger than the sum of its proper divisors (183087784).

243504452 is a wasteful number, since it uses less digits than its factorization.

243504452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65638 (or 65636 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 243504452 is about 15604.6291849566. The cubic root of 243504452 is about 624.4566601611.

Adding to 243504452 its reverse (254405342), we get a palindrome (497909794).

The spelling of 243504452 in words is "two hundred forty-three million, five hundred four thousand, four hundred fifty-two".