501752730 has 32 divisors (see below), whose sum is σ = 1229831424. Its totient is φ = 130953536.

The previous prime is 501752729. The next prime is 501752731. The reversal of 501752730 is 37257105.

It is an interprime number because it is at equal distance from previous prime (501752729) and next prime (501752731).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (501752731) 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, 176517 + ... + 179336.

It is an arithmetic number, because the mean of its divisors is an integer number (38432232).

Almost surely, 2^501752730 is an apocalyptic number.

501752730 is an abundant number, since it is smaller than the sum of its proper divisors (728078694).

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

501752730 is a wasteful number, since it uses less digits than its factorization.

501752730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355910.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 501752730 is about 22399.8377226265. The cubic root of 501752730 is about 794.6268728838.

The spelling of 501752730 in words is "five hundred one million, seven hundred fifty-two thousand, seven hundred thirty".