515114420 has 48 divisors (see below), whose sum is σ = 1108915920. Its totient is φ = 200989568.

The previous prime is 515114389. The next prime is 515114437. The reversal of 515114420 is 24411515.

It can be written as a sum of positive squares in 8 ways, for example, as 7333264 + 507781156 = 2708^2 + 22534^2 .

It is a congruent number.

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, 2977454 + ... + 2977626.

It is an arithmetic number, because the mean of its divisors is an integer number (23102415).

Almost surely, 2^515114420 is an apocalyptic number.

It is an amenable number.

515114420 is an abundant number, since it is smaller than the sum of its proper divisors (593801500).

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

515114420 is an equidigital number, since it uses as much as digits as its factorization.

515114420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 515114420 is about 22696.1322696181. The cubic root of 515114420 is about 801.6188158346.

Adding to 515114420 its reverse (24411515), we get a palindrome (539525935).

The spelling of 515114420 in words is "five hundred fifteen million, one hundred fourteen thousand, four hundred twenty".