52028440 has 16 divisors (see below), whose sum is σ = 117064080. Its totient is φ = 20811360.

The previous prime is 52028423. The next prime is 52028497. The reversal of 52028440 is 4482025.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 650316 + ... + 650395.

It is an arithmetic number, because the mean of its divisors is an integer number (7316505).

Almost surely, 2^52028440 is an apocalyptic number.

It is an amenable number.

52028440 is an abundant number, since it is smaller than the sum of its proper divisors (65035640).

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

52028440 is a wasteful number, since it uses less digits than its factorization.

52028440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300722 (or 1300718 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 52028440 is about 7213.0742405718. The cubic root of 52028440 is about 373.3191498296.

The spelling of 52028440 in words is "fifty-two million, twenty-eight thousand, four hundred forty".