501701440 has 56 divisors (see below), whose sum is σ = 1198732680. Its totient is φ = 199999488.

The previous prime is 501701413. The next prime is 501701443. The reversal of 501701440 is 44107105.

It can be written as a sum of positive squares in 4 ways, for example, as 1016064 + 500685376 = 1008^2 + 22376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501701443) 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, 97656 + ... + 102664.

Almost surely, 2^501701440 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 501701440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599366340).

501701440 is an abundant number, since it is smaller than the sum of its proper divisors (697031240).

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

501701440 is a wasteful number, since it uses less digits than its factorization.

501701440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339 (or 5329 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 501701440 is about 22398.6928190017. The cubic root of 501701440 is about 794.5997959335.

Adding to 501701440 its reverse (44107105), we get a palindrome (545808545).

The spelling of 501701440 in words is "five hundred one million, seven hundred one thousand, four hundred forty".