6412021620 has 48 divisors (see below), whose sum is σ = 18292417920. Its totient is φ = 1677609856.

The previous prime is 6412021579. The next prime is 6412021621. The reversal of 6412021620 is 261202146.

It is a super-2 number, since 2×6412021620² = 82228042510694848800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6412021621) 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, 1005000 + ... + 1011359.

It is an arithmetic number, because the mean of its divisors is an integer number (381092040).

Almost surely, 2^6412021620 is an apocalyptic number.

6412021620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6412021620 is an abundant number, since it is smaller than the sum of its proper divisors (11880396300).

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

6412021620 is a wasteful number, since it uses less digits than its factorization.

6412021620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016424 (or 2016422 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 6412021620 is about 80075.0998750548. The cubic root of 6412021620 is about 1857.7972941972.

Adding to 6412021620 its reverse (261202146), we get a palindrome (6673223766).

The spelling of 6412021620 in words is "six billion, four hundred twelve million, twenty-one thousand, six hundred twenty".