501288 has 16 divisors (see below), whose sum is σ = 1253280. Its totient is φ = 167088.

The previous prime is 501287. The next prime is 501299. The reversal of 501288 is 882105.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 20887 = 501288 / (5 + 0 + 1 + 2 + 8 + 8).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (501287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10420 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (78330).

2⁵⁰¹²⁸⁸ is an apocalyptic number.

It is an amenable number.

501288 is an abundant number, since it is smaller than the sum of its proper divisors (751992).

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

501288 is a wasteful number, since it uses less digits than its factorization.

501288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20896 (or 20892 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 501288 is about 708.0169489497. The cubic root of 501288 is about 79.4381465803.

Subtracting from 501288 its sum of digits (24), we obtain a square (501264 = 708²).

The spelling of 501288 in words is "five hundred one thousand, two hundred eighty-eight".