505010730 has 32 divisors (see below), whose sum is σ = 1385172864. Its totient is φ = 115430976.

The previous prime is 505010719. The next prime is 505010749. The reversal of 505010730 is 37010505.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505010697 and 505010706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202197 + ... + 1202616.

It is an arithmetic number, because the mean of its divisors is an integer number (43286652).

Almost surely, 2^505010730 is an apocalyptic number.

505010730 is an abundant number, since it is smaller than the sum of its proper divisors (880162134).

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

505010730 is a wasteful number, since it uses less digits than its factorization.

505010730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404830.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 505010730 is about 22472.4437923427. The cubic root of 505010730 is about 796.3430642054.

The spelling of 505010730 in words is "five hundred five million, ten thousand, seven hundred thirty".