501420160 has 128 divisors (see below), whose sum is σ = 1246901040. Its totient is φ = 192675840.

The previous prime is 501420109. The next prime is 501420167. The reversal of 501420160 is 61024105.

It can be written as a sum of positive squares in 8 ways, for example, as 222129216 + 279290944 = 14904^2 + 16712^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (501420167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545182 + ... + 2545378.

Almost surely, 2^501420160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501420160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623450520).

501420160 is an abundant number, since it is smaller than the sum of its proper divisors (745480880).

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

501420160 is a wasteful number, since it uses less digits than its factorization.

501420160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 501420160 is about 22392.4130008358. The cubic root of 501420160 is about 794.4512701402.

Adding to 501420160 its reverse (61024105), we get a palindrome (562444265).

The spelling of 501420160 in words is "five hundred one million, four hundred twenty thousand, one hundred sixty".