52243040 has 48 divisors (see below), whose sum is σ = 130691232. Its totient is φ = 19666944.

The previous prime is 52243039. The next prime is 52243043. The reversal of 52243040 is 4034225.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52243043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6884 + ... + 12323.

It is an arithmetic number, because the mean of its divisors is an integer number (2722734).

Almost surely, 2^52243040 is an apocalyptic number.

It is an amenable number.

52243040 is an abundant number, since it is smaller than the sum of its proper divisors (78448192).

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

52243040 is a wasteful number, since it uses less digits than its factorization.

52243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19239 (or 19231 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 52243040 is about 7227.9346981001. The cubic root of 52243040 is about 373.8317181673.

Adding to 52243040 its reverse (4034225), we get a palindrome (56277265).

The spelling of 52243040 in words is "fifty-two million, two hundred forty-three thousand, forty".