2520323340 has 24 divisors (see below), whose sum is σ = 7056905520. Its totient is φ = 672086208.

The previous prime is 2520323291. The next prime is 2520323359. The reversal of 2520323340 is 433230252.

It is a self number, because there is not a number n which added to its sum of digits gives 2520323340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21002635 + ... + 21002754.

It is an arithmetic number, because the mean of its divisors is an integer number (294037730).

Almost surely, 2^2520323340 is an apocalyptic number.

2520323340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520323340 is an abundant number, since it is smaller than the sum of its proper divisors (4536582180).

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

2520323340 is a wasteful number, since it uses less digits than its factorization.

2520323340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42005401 (or 42005399 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 2520323340 is about 50202.8220322324. The cubic root of 2520323340 is about 1360.8766226895.

Adding to 2520323340 its reverse (433230252), we get a palindrome (2953553592).

The spelling of 2520323340 in words is "two billion, five hundred twenty million, three hundred twenty-three thousand, three hundred forty".