515228 has 12 divisors (see below), whose sum is σ = 1030512. Its totient is φ = 220800.

The previous prime is 515227. The next prime is 515231. The reversal of 515228 is 822515.

515228 is an admirable number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515227) 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, 9173 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (85876).

2⁵¹⁵²²⁸ is an apocalyptic number.

It is an amenable number.

515228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

515228 is a wasteful number, since it uses less digits than its factorization.

515228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412 (or 18410 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 515228 is about 717.7938422695. The cubic root of 515228 is about 80.1677729072.

The spelling of 515228 in words is "five hundred fifteen thousand, two hundred twenty-eight".