505728244 has 24 divisors (see below), whose sum is σ = 1064692160. Its totient is φ = 205333056.

The previous prime is 505728199. The next prime is 505728253. The reversal of 505728244 is 442827505.

It is a happy number.

It is a super-2 number, since 2×505728244² = 511522113558647072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474777 + ... + 475840.

Almost surely, 2^505728244 is an apocalyptic number.

It is an amenable number.

505728244 is an abundant number, since it is smaller than the sum of its proper divisors (558963916).

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

505728244 is a wasteful number, since it uses less digits than its factorization.

505728244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950647 (or 950645 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 505728244 is about 22488.4024332543. The cubic root of 505728244 is about 796.7200310497.

The spelling of 505728244 in words is "five hundred five million, seven hundred twenty-eight thousand, two hundred forty-four".