2621212424 has 32 divisors (see below), whose sum is σ = 4944585600. Its totient is φ = 1302678720.

The previous prime is 2621212397. The next prime is 2621212427. The reversal of 2621212424 is 4242121262.

It is a junction number, because it is equal to n+sod(n) for n = 2621212393 and 2621212402.

It is not an unprimeable number, because it can be changed into a prime (2621212427) by changing a digit.

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, 1446479 + ... + 1448289.

It is an arithmetic number, because the mean of its divisors is an integer number (154518300).

Almost surely, 2^2621212424 is an apocalyptic number.

It is an amenable number.

2621212424 is a deficient number, since it is larger than the sum of its proper divisors (2323373176).

2621212424 is a wasteful number, since it uses less digits than its factorization.

2621212424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813 (or 2809 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 2621212424 is about 51197.7775298889. Note that the first 3 decimals coincide. The cubic root of 2621212424 is about 1378.7982999425.

Adding to 2621212424 its reverse (4242121262), we get a palindrome (6863333686).

The spelling of 2621212424 in words is "two billion, six hundred twenty-one million, two hundred twelve thousand, four hundred twenty-four".