520077228 has 48 divisors (see below), whose sum is σ = 1325721600. Its totient is φ = 157374400.

The previous prime is 520077227. The next prime is 520077241. The reversal of 520077228 is 822770025.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (520077223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105973 + ... + 110771.

It is an arithmetic number, because the mean of its divisors is an integer number (27619200).

Almost surely, 2^520077228 is an apocalyptic number.

It is an amenable number.

520077228 is an abundant number, since it is smaller than the sum of its proper divisors (805644372).

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

520077228 is a wasteful number, since it uses less digits than its factorization.

520077228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638 (or 5636 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 520077228 is about 22805.2017750337. The cubic root of 520077228 is about 804.1849590560.

It can be divided in two parts, 5200 and 77228, that added together give a palindrome (82428).

The spelling of 520077228 in words is "five hundred twenty million, seventy-seven thousand, two hundred twenty-eight".