52840320 has 256 divisors, whose sum is σ = 190209600. Its totient is φ = 12386304.

The previous prime is 52840313. The next prime is 52840331. The reversal of 52840320 is 2304825.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723804 + ... + 723876.

Almost surely, 2^52840320 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 52840320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95104800).

52840320 is an abundant number, since it is smaller than the sum of its proper divisors (137369280).

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

52840320 is a wasteful number, since it uses less digits than its factorization.

52840320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 52840320 is about 7269.1347490606. The cubic root of 52840320 is about 375.2509609011.

The spelling of 52840320 in words is "fifty-two million, eight hundred forty thousand, three hundred twenty".