52843840 has 112 divisors (see below), whose sum is σ = 148644864. Its totient is φ = 17510400.

The previous prime is 52843831. The next prime is 52843849. The reversal of 52843840 is 4834825.

It is an interprime number because it is at equal distance from previous prime (52843831) and next prime (52843849).

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 52843796 and 52843805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52843849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69060 + ... + 69820.

Almost surely, 2^52843840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52843840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74322432).

52843840 is an abundant number, since it is smaller than the sum of its proper divisors (95801024).

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

52843840 is a wasteful number, since it uses less digits than its factorization.

52843840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 52843840 is about 7269.3768646288. The cubic root of 52843840 is about 375.2592932633.

The spelling of 52843840 in words is "fifty-two million, eight hundred forty-three thousand, eight hundred forty".