2621416620 has 48 divisors (see below), whose sum is σ = 7412656608. Its totient is φ = 692121600.

The previous prime is 2621416613. The next prime is 2621416621. The reversal of 2621416620 is 266141262.

It is a super-2 number, since 2×2621416620² = 13743650191224448800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2621416621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210229 + ... + 222348.

It is an arithmetic number, because the mean of its divisors is an integer number (154430346).

Almost surely, 2^2621416620 is an apocalyptic number.

2621416620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2621416620 is an abundant number, since it is smaller than the sum of its proper divisors (4791239988).

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

2621416620 is a wasteful number, since it uses less digits than its factorization.

2621416620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432690 (or 432688 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2621416620 is about 51199.7716791784. The cubic root of 2621416620 is about 1378.8341024315.

Adding to 2621416620 its reverse (266141262), we get a palindrome (2887557882).

The spelling of 2621416620 in words is "two billion, six hundred twenty-one million, four hundred sixteen thousand, six hundred twenty".