523342240 has 24 divisors (see below), whose sum is σ = 1236396420. Its totient is φ = 209336832.

The previous prime is 523342223. The next prime is 523342273. The reversal of 523342240 is 42243325.

It can be written as a sum of positive squares in 2 ways, for example, as 478559376 + 44782864 = 21876^2 + 6692^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635285 + ... + 1635604.

Almost surely, 2^523342240 is an apocalyptic number.

It is an amenable number.

523342240 is an abundant number, since it is smaller than the sum of its proper divisors (713054180).

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

523342240 is a wasteful number, since it uses less digits than its factorization.

523342240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270904 (or 3270896 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 523342240 is about 22876.6745835141. The cubic root of 523342240 is about 805.8643237607.

Adding to 523342240 its reverse (42243325), we get a palindrome (565585565).

The spelling of 523342240 in words is "five hundred twenty-three million, three hundred forty-two thousand, two hundred forty".