502540228 has 6 divisors (see below), whose sum is σ = 879445406. Its totient is φ = 251270112.

The previous prime is 502540211. The next prime is 502540237. The reversal of 502540228 is 822045205.

It can be written as a sum of positive squares in only one way, i.e., 399680064 + 102860164 = 19992^2 + 10142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 502540196 and 502540205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62817525 + ... + 62817532.

Almost surely, 2^502540228 is an apocalyptic number.

It is an amenable number.

502540228 is a deficient number, since it is larger than the sum of its proper divisors (376905178).

502540228 is a wasteful number, since it uses less digits than its factorization.

502540228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125635061 (or 125635059 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 502540228 is about 22417.4090385129. The cubic root of 502540228 is about 795.0423763390.

The spelling of 502540228 in words is "five hundred two million, five hundred forty thousand, two hundred twenty-eight".