2520538340 has 48 divisors (see below), whose sum is σ = 5377155840. Its totient is φ = 992261760.

The previous prime is 2520538301. The next prime is 2520538343. The reversal of 2520538340 is 438350252.

2520538340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2520538340² = 12706227046819911200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2520538297 and 2520538306.

It is not an unprimeable number, because it can be changed into a prime (2520538343) 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, 1053866 + ... + 1056254.

It is an arithmetic number, because the mean of its divisors is an integer number (112024080).

Almost surely, 2^2520538340 is an apocalyptic number.

2520538340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520538340 is an abundant number, since it is smaller than the sum of its proper divisors (2856617500).

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

2520538340 is a wasteful number, since it uses less digits than its factorization.

2520538340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2520538340 is about 50204.9633004547. The cubic root of 2520538340 is about 1360.9153188031.

Adding to 2520538340 its reverse (438350252), we get a palindrome (2958888592).

The spelling of 2520538340 in words is "two billion, five hundred twenty million, five hundred thirty-eight thousand, three hundred forty".