6622431420 has 192 divisors, whose sum is σ = 21197094912. Its totient is φ = 1530144000.

The previous prime is 6622431407. The next prime is 6622431443. The reversal of 6622431420 is 241342266.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1368405 + ... + 1373235.

It is an arithmetic number, because the mean of its divisors is an integer number (110401536).

Almost surely, 2^6622431420 is an apocalyptic number.

6622431420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622431420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10598547456).

6622431420 is an abundant number, since it is smaller than the sum of its proper divisors (14574663492).

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

6622431420 is a wasteful number, since it uses less digits than its factorization.

6622431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952 (or 4950 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6622431420 is about 81378.3227893030. The cubic root of 6622431420 is about 1877.9001206917.

Adding to 6622431420 its reverse (241342266), we get a palindrome (6863773686).

The spelling of 6622431420 in words is "six billion, six hundred twenty-two million, four hundred thirty-one thousand, four hundred twenty".