52203840 has 224 divisors, whose sum is σ = 184343040. Its totient is φ = 12435456.

The previous prime is 52203829. The next prime is 52203841. The reversal of 52203840 is 4830225.

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 52203840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52203841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 586516 + ... + 586604.

It is an arithmetic number, because the mean of its divisors is an integer number (822960).

Almost surely, 2^52203840 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 52203840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92171520).

52203840 is an abundant number, since it is smaller than the sum of its proper divisors (132139200).

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

52203840 is a wasteful number, since it uses less digits than its factorization.

52203840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 159 counting only the distinct ones).

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

The square root of 52203840 is about 7225.2224879238. Note that the first 3 decimals coincide. The cubic root of 52203840 is about 373.7381945765.

The spelling of 52203840 in words is "fifty-two million, two hundred three thousand, eight hundred forty".