552840 has 64 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 138240.

The previous prime is 552833. The next prime is 552841. The reversal of 552840 is 48255.

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

It is a self number, because there is not a number n which added to its sum of digits gives 552840.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 552840.

It is not an unprimeable number, because it can be changed into a prime (552841) by changing a digit.

552840 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2⁵⁵²⁸⁴⁰ 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 552840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881280).

552840 is an abundant number, since it is smaller than the sum of its proper divisors (1209720).

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

552840 is a wasteful number, since it uses less digits than its factorization.

552840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 552840 is about 743.5321109407. The cubic root of 552840 is about 82.0729075944.

The spelling of 552840 in words is "five hundred fifty-two thousand, eight hundred forty".