505747244 has 24 divisors (see below), whose sum is σ = 932756160. Its totient is φ = 239277456.

The previous prime is 505747243. The next prime is 505747261. The reversal of 505747244 is 442747505.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 505747198 and 505747207.

It is not an unprimeable number, because it can be changed into a prime (505747243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68459 + ... + 75485.

It is an arithmetic number, because the mean of its divisors is an integer number (38864840).

Almost surely, 2^505747244 is an apocalyptic number.

It is an amenable number.

505747244 is a deficient number, since it is larger than the sum of its proper divisors (427008916).

505747244 is a wasteful number, since it uses less digits than its factorization.

505747244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997 (or 7995 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 505747244 is about 22488.8248692545. The cubic root of 505747244 is about 796.7300084049.

The spelling of 505747244 in words is "five hundred five million, seven hundred forty-seven thousand, two hundred forty-four".