505329738 has 32 divisors (see below), whose sum is σ = 1064923200. Its totient is φ = 159417216.

The previous prime is 505329733. The next prime is 505329739. The reversal of 505329738 is 837923505.

It is a self number, because there is not a number n which added to its sum of digits gives 505329738.

It is not an unprimeable number, because it can be changed into a prime (505329731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168718 + ... + 171686.

It is an arithmetic number, because the mean of its divisors is an integer number (33278850).

Almost surely, 2^505329738 is an apocalyptic number.

505329738 is an abundant number, since it is smaller than the sum of its proper divisors (559593462).

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

505329738 is a wasteful number, since it uses less digits than its factorization.

505329738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 505329738 is about 22479.5404312455. The cubic root of 505329738 is about 796.5107083898.

The spelling of 505329738 in words is "five hundred five million, three hundred twenty-nine thousand, seven hundred thirty-eight".