52002440 has 32 divisors (see below), whose sum is σ = 133721280. Its totient is φ = 17829312.

The previous prime is 52002421. The next prime is 52002443. The reversal of 52002440 is 4420025.

52002440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52002443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 92582 + ... + 93141.

It is an arithmetic number, because the mean of its divisors is an integer number (4178790).

Almost surely, 2^52002440 is an apocalyptic number.

It is an amenable number.

52002440 is an abundant number, since it is smaller than the sum of its proper divisors (81718840).

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

52002440 is a wasteful number, since it uses less digits than its factorization.

52002440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185741 (or 185737 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 52002440 is about 7211.2717325032. The cubic root of 52002440 is about 373.2569536207.

Adding to 52002440 its reverse (4420025), we get a palindrome (56422465).

The spelling of 52002440 in words is "fifty-two million, two thousand, four hundred forty".