539228820 has 96 divisors (see below), whose sum is σ = 1642975488. Its totient is φ = 131346432.

The previous prime is 539228801. The next prime is 539228827. The reversal of 539228820 is 28822935.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539228827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72097 + ... + 79223.

It is an arithmetic number, because the mean of its divisors is an integer number (17114328).

Almost surely, 2^539228820 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 539228820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821487744).

539228820 is an abundant number, since it is smaller than the sum of its proper divisors (1103746668).

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

539228820 is a wasteful number, since it uses less digits than its factorization.

539228820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 539228820 is about 23221.3009971448. The cubic root of 539228820 is about 813.9374513008.

The spelling of 539228820 in words is "five hundred thirty-nine million, two hundred twenty-eight thousand, eight hundred twenty".